diff --git a/.github/workflows/examples-telink.yaml b/.github/workflows/examples-telink.yaml
index 34afad3e0657e0..0f7a42d4ab8a04 100644
--- a/.github/workflows/examples-telink.yaml
+++ b/.github/workflows/examples-telink.yaml
@@ -124,25 +124,25 @@ jobs:
             - name: clean out build output (keep tools)
               run: rm -rf ./out/telink*
 
-            - name: Build example Telink (B91) Lighting App with RPC, Shell and Factory Data
+            - name: Build example Telink (B91) Lighting App with OTA, RPC, Factory Data and 4Mb flash
               run: |
                   ./scripts/run_in_build_env.sh \
-                    "./scripts/build/build_examples.py --target 'telink-tlsr9518adk80d-light-rpc-shell-factory-data' build"
+                    "./scripts/build/build_examples.py --target 'telink-tlsr9518adk80d-light-ota-rpc-factory-data-4mb' build"
                   .environment/pigweed-venv/bin/python3 scripts/tools/memory/gh_sizes.py \
-                    telink tlsr9518adk80d lighting-app-rpc-shell-factory-data \
-                    out/telink-tlsr9518adk80d-light-rpc-shell-factory-data/zephyr/zephyr.elf \
+                    telink tlsr9518adk80d lighting-app-ota-rpc-factory-data-4mb \
+                    out/telink-tlsr9518adk80d-light-ota-rpc-factory-data-4mb/zephyr/zephyr.elf \
                     /tmp/bloat_reports/
 
             - name: clean out build output (keep tools)
               run: rm -rf ./out/telink*
 
-            - name: Build example Telink (B92) Light Switch App with RPC, Shell and Factory Data
+            - name: Build example Telink (B92) Light Switch App with OTA, Shell, Factory Data
               run: |
                   ./scripts/run_in_build_env.sh \
-                    "./scripts/build/build_examples.py --target 'telink-tlsr9528a-light-switch-rpc-shell-factory-data' build"
+                    "./scripts/build/build_examples.py --target 'telink-tlsr9528a-light-switch-ota-shell-factory-data' build"
                   .environment/pigweed-venv/bin/python3 scripts/tools/memory/gh_sizes.py \
-                    telink tlsr9528a light-switch-app-rpc-shell-factory-data \
-                    out/telink-tlsr9528a-light-switch-rpc-shell-factory-data/zephyr/zephyr.elf \
+                    telink tlsr9528a light-switch-app-ota-shell-factory-data \
+                    out/telink-tlsr9528a-light-switch-ota-shell-factory-data/zephyr/zephyr.elf \
                     /tmp/bloat_reports/
 
             - name: clean out build output
diff --git a/config/telink/chip-module/CMakeLists.txt b/config/telink/chip-module/CMakeLists.txt
index a4c9d2cbf9bcdf..323bc55d6a1a1c 100644
--- a/config/telink/chip-module/CMakeLists.txt
+++ b/config/telink/chip-module/CMakeLists.txt
@@ -166,6 +166,13 @@ else()
     unset(GLOBAL_BOOTLOADER_CONF_OVERLAY_FILE)
 endif()
 
+set(BLOCK_SIZE "1024")
+
+# get code-partition mcuboot_partition size
+dt_nodelabel(dts_partition_path NODELABEL "boot_partition")
+dt_reg_size(mcuboot_size PATH ${dts_partition_path})
+math(EXPR boot_blocks "${mcuboot_size} / ${BLOCK_SIZE}" OUTPUT_FORMAT DECIMAL)
+
 if (CONFIG_CHIP_OTA_IMAGE_BUILD)
     add_custom_target(build_mcuboot ALL
         COMMAND
@@ -177,7 +184,7 @@ if (CONFIG_CHIP_OTA_IMAGE_BUILD)
         COMMAND
         dd if=${PROJECT_BINARY_DIR}/../modules/chip-module/build_mcuboot/zephyr/zephyr.bin of=${PROJECT_BINARY_DIR}/zephyr.bin
         COMMAND
-        dd if=${PROJECT_BINARY_DIR}/zephyr.signed.bin of=${PROJECT_BINARY_DIR}/zephyr.bin bs=1024 seek=100
+        dd if=${PROJECT_BINARY_DIR}/zephyr.signed.bin of=${PROJECT_BINARY_DIR}/zephyr.bin bs=${BLOCK_SIZE} seek=${boot_blocks}
     )
 
     chip_ota_image(chip-ota-image
@@ -189,16 +196,21 @@ if (CONFIG_CHIP_OTA_IMAGE_BUILD)
     add_dependencies(chip-ota-image ${ZEPHYR_FINAL_EXECUTABLE})
 endif()
 
+# get code-partition factory_partition address
+dt_nodelabel(dts_partition_path NODELABEL "factory_partition")
+dt_reg_addr(factory_size PATH ${dts_partition_path})
+math(EXPR factory_blocks "${factory_size} / ${BLOCK_SIZE}" OUTPUT_FORMAT DECIMAL)
+
 if (CONFIG_CHIP_FACTORY_DATA_MERGE_WITH_FIRMWARE)
-    add_custom_target(merge_factory_data ALL
-        COMMAND
-        dd if=${PROJECT_BINARY_DIR}/factory/factory_data.bin of=${PROJECT_BINARY_DIR}/zephyr.bin bs=1024 seek=1052
-    )
-if (CONFIG_CHIP_OTA_IMAGE_BUILD)
+  add_custom_target(merge_factory_data ALL
+    COMMAND
+    dd if=${PROJECT_BINARY_DIR}/factory/factory_data.bin of=${PROJECT_BINARY_DIR}/zephyr.bin bs=${BLOCK_SIZE} seek=${factory_blocks}
+  )
+  if (CONFIG_CHIP_OTA_IMAGE_BUILD)
     add_dependencies(merge_factory_data merge_mcuboot)
-else()
+  else()
     add_dependencies(merge_factory_data ${ZEPHYR_FINAL_EXECUTABLE})
-endif()
+  endif()
 endif()
 
 # ==============================================================================
diff --git a/config/telink/chip-module/generate_factory_data.cmake b/config/telink/chip-module/generate_factory_data.cmake
index 9ba1903266c2dc..5dfaa8e839dc4e 100644
--- a/config/telink/chip-module/generate_factory_data.cmake
+++ b/config/telink/chip-module/generate_factory_data.cmake
@@ -116,6 +116,17 @@ if(CONFIG_CHIP_DEVICE_ENABLE_KEY)
 string(APPEND script_args "--enable-key \"${CONFIG_CHIP_DEVICE_ENABLE_KEY}\"\n")
 endif()
 
+# get code-partition factory_partition address
+dt_nodelabel(dts_partition_path NODELABEL "factory_partition")
+dt_reg_addr(factory_off PATH ${dts_partition_path})
+
+# get code-partition factory_partition size
+dt_nodelabel(dts_partition_path NODELABEL "factory_partition")
+dt_reg_size(factory_size PATH ${dts_partition_path})
+
+string(APPEND script_args "--offset ${factory_off}\n")
+string(APPEND script_args "--size ${factory_size}\n")
+
 string(APPEND script_args "--output \"${output_path}\"/factory\n")
 
 set(factory_data_bin ${output_path}/factory/factory_data.bin)
diff --git a/examples/air-quality-sensor-app/telink/CMakeLists.txt b/examples/air-quality-sensor-app/telink/CMakeLists.txt
index 937002d7cee1ba..fd5a5b14256426 100644
--- a/examples/air-quality-sensor-app/telink/CMakeLists.txt
+++ b/examples/air-quality-sensor-app/telink/CMakeLists.txt
@@ -31,13 +31,21 @@ else()
   unset(GLOBAL_DTC_OVERLAY_FILE)
 endif()
 
+if(EXISTS "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  message(STATUS "Flash memory size is set to: " ${FLASH_SIZE} "b")
+else()
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/2m_flash.overlay")
+  message(STATUS "Flash memory size is set to: 2mb")
+endif()
+
 if(DTC_OVERLAY_FILE)
   set(DTC_OVERLAY_FILE
-    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
+    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
     CACHE STRING "" FORCE
   )
 else()
-  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
+  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
 endif()
 
 set(CONF_FILE prj.conf)
diff --git a/examples/air-quality-sensor-app/telink/README.md b/examples/air-quality-sensor-app/telink/README.md
index 371a26cc00639e..eecc7e8bbdbaa6 100644
--- a/examples/air-quality-sensor-app/telink/README.md
+++ b/examples/air-quality-sensor-app/telink/README.md
@@ -31,6 +31,13 @@ You can use this example as a reference for creating your own application.
     $ west build -b <build_target>
     ```
 
+    Also use key `-DFLASH_SIZE`, if your board has memory size different from 2
+    MB, for example, `-DFLASH_SIZE=1m` or `-DFLASH_SIZE=1m`:
+
+    ```bash
+    $ west build -b tlsr9518adk80d -- -DFLASH_SIZE=4m
+    ```
+
 4. Flash binary:
 
     ```
@@ -115,7 +122,7 @@ feature for another Telink example:
 
 After build application with enabled OTA feature, use next binary files:
 
--   zephyr.bin - main binary to flash PCB (Use 2MB PCB).
+-   zephyr.bin - main binary to flash PCB (Use at least 2MB PCB).
 -   zephyr-ota.bin - binary for OTA Provider
 
 All binaries has the same SW version. To test OTA “zephyr-ota.bin” should have
diff --git a/examples/all-clusters-app/telink/CMakeLists.txt b/examples/all-clusters-app/telink/CMakeLists.txt
index 9c0da32bce0083..3b3f3ac44bf4cd 100644
--- a/examples/all-clusters-app/telink/CMakeLists.txt
+++ b/examples/all-clusters-app/telink/CMakeLists.txt
@@ -32,13 +32,21 @@ else()
   unset(GLOBAL_DTC_OVERLAY_FILE)
 endif()
 
+if(EXISTS "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  message(STATUS "Flash memory size is set to: " ${FLASH_SIZE} "b")
+else()
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/2m_flash.overlay")
+  message(STATUS "Flash memory size is set to: 2mb")
+endif()
+
 if(DTC_OVERLAY_FILE)
   set(DTC_OVERLAY_FILE
-    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
+    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
     CACHE STRING "" FORCE
   )
 else()
-  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
+  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
 endif()
 
 set(CONF_FILE prj.conf)
diff --git a/examples/all-clusters-app/telink/Readme.md b/examples/all-clusters-app/telink/Readme.md
index d83ba75fb1353b..a8881b7fdeb024 100644
--- a/examples/all-clusters-app/telink/Readme.md
+++ b/examples/all-clusters-app/telink/Readme.md
@@ -33,6 +33,13 @@ creating your own application.
     $ west build -b <build_target>
     ```
 
+    Also use key `-DFLASH_SIZE`, if your board has memory size different from 2
+    MB, for example, `-DFLASH_SIZE=1m` or `-DFLASH_SIZE=1m`:
+
+    ```bash
+    $ west build -b tlsr9518adk80d -- -DFLASH_SIZE=4m
+    ```
+
 4. Flash binary:
 
     ```
@@ -117,7 +124,7 @@ feature for another Telink example:
 
 After build application with enabled OTA feature, use next binary files:
 
--   zephyr.bin - main binary to flash PCB (Use 2MB PCB).
+-   zephyr.bin - main binary to flash PCB (Use at least 2MB PCB).
 -   zephyr-ota.bin - binary for OTA Provider
 
 All binaries has the same SW version. To test OTA “zephyr-ota.bin” should have
diff --git a/examples/all-clusters-minimal-app/telink/CMakeLists.txt b/examples/all-clusters-minimal-app/telink/CMakeLists.txt
index ea026b2a834bfa..a7bb51ba0e67fe 100644
--- a/examples/all-clusters-minimal-app/telink/CMakeLists.txt
+++ b/examples/all-clusters-minimal-app/telink/CMakeLists.txt
@@ -32,13 +32,21 @@ else()
   unset(GLOBAL_DTC_OVERLAY_FILE)
 endif()
 
+if(EXISTS "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  message(STATUS "Flash memory size is set to: " ${FLASH_SIZE} "b")
+else()
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/2m_flash.overlay")
+  message(STATUS "Flash memory size is set to: 2mb")
+endif()
+
 if(DTC_OVERLAY_FILE)
   set(DTC_OVERLAY_FILE
-    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
+    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
     CACHE STRING "" FORCE
   )
 else()
-  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
+  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
 endif()
 
 set(CONF_FILE prj.conf)
diff --git a/examples/all-clusters-minimal-app/telink/Readme.md b/examples/all-clusters-minimal-app/telink/Readme.md
index aa751fecabea42..53c750b806baf7 100644
--- a/examples/all-clusters-minimal-app/telink/Readme.md
+++ b/examples/all-clusters-minimal-app/telink/Readme.md
@@ -33,6 +33,13 @@ for creating your own application.
     $ west build -b <build_target>
     ```
 
+    Also use key `-DFLASH_SIZE`, if your board has memory size different from 2
+    MB, for example, `-DFLASH_SIZE=1m` or `-DFLASH_SIZE=1m`:
+
+    ```bash
+    $ west build -b tlsr9518adk80d -- -DFLASH_SIZE=4m
+    ```
+
 4. Flash binary:
 
     ```
@@ -100,7 +107,7 @@ feature for another Telink example:
 
 After build application with enabled OTA feature, use next binary files:
 
--   zephyr.bin - main binary to flash PCB (Use 2MB PCB).
+-   zephyr.bin - main binary to flash PCB (Use at least 2MB PCB).
 -   zephyr-ota.bin - binary for OTA Provider
 
 All binaries has the same SW version. To test OTA “zephyr-ota.bin” should have
diff --git a/examples/bridge-app/telink/CMakeLists.txt b/examples/bridge-app/telink/CMakeLists.txt
index 7fb0bb6d81f4c9..1b65dc3bf543e7 100644
--- a/examples/bridge-app/telink/CMakeLists.txt
+++ b/examples/bridge-app/telink/CMakeLists.txt
@@ -31,13 +31,21 @@ else()
   unset(GLOBAL_DTC_OVERLAY_FILE)
 endif()
 
+if(EXISTS "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  message(STATUS "Flash memory size is set to: " ${FLASH_SIZE} "b")
+else()
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/2m_flash.overlay")
+  message(STATUS "Flash memory size is set to: 2mb")
+endif()
+
 if(DTC_OVERLAY_FILE)
   set(DTC_OVERLAY_FILE
-    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
+    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
     CACHE STRING "" FORCE
   )
 else()
-  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
+  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
 endif()
 
 set(CONF_FILE prj.conf)
diff --git a/examples/bridge-app/telink/README.md b/examples/bridge-app/telink/README.md
index 48ae3eaec0a6e6..fd3d70c21e9b84 100644
--- a/examples/bridge-app/telink/README.md
+++ b/examples/bridge-app/telink/README.md
@@ -110,6 +110,13 @@ defined:
     $ west build -b <build_target>
     ```
 
+    Also use key `-DFLASH_SIZE`, if your board has memory size different from 2
+    MB, for example, `-DFLASH_SIZE=1m` or `-DFLASH_SIZE=1m`:
+
+    ```bash
+    $ west build -b tlsr9518adk80d -- -DFLASH_SIZE=4m
+    ```
+
 4. Flash binary:
 
     ```
@@ -262,7 +269,7 @@ feature for another Telink example:
 
 After build application with enabled OTA feature, use next binary files:
 
--   zephyr.bin - main binary to flash PCB (Use 2MB PCB).
+-   zephyr.bin - main binary to flash PCB (Use at least 2MB PCB).
 -   zephyr-ota.bin - binary for OTA Provider
 
 All binaries has the same SW version. To test OTA “zephyr-ota.bin” should have
diff --git a/examples/chef/telink/CMakeLists.txt b/examples/chef/telink/CMakeLists.txt
index 2886513e7a39e7..d52ce7446f12ed 100755
--- a/examples/chef/telink/CMakeLists.txt
+++ b/examples/chef/telink/CMakeLists.txt
@@ -38,13 +38,21 @@ else()
   unset(GLOBAL_DTC_OVERLAY_FILE)
 endif()
 
+if(EXISTS "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  message(STATUS "Flash memory size is set to: " ${FLASH_SIZE} "b")
+else()
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/2m_flash.overlay")
+  message(STATUS "Flash memory size is set to: 2mb")
+endif()
+
 if(DTC_OVERLAY_FILE)
   set(DTC_OVERLAY_FILE
-    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
+    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
     CACHE STRING "" FORCE
   )
 else()
-  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
+  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
 endif()
 
 set(CONF_FILE prj.conf)
diff --git a/examples/contact-sensor-app/telink/CMakeLists.txt b/examples/contact-sensor-app/telink/CMakeLists.txt
index 8eaba1825577c6..128d7afbf89744 100755
--- a/examples/contact-sensor-app/telink/CMakeLists.txt
+++ b/examples/contact-sensor-app/telink/CMakeLists.txt
@@ -31,13 +31,21 @@ else()
   unset(GLOBAL_DTC_OVERLAY_FILE)
 endif()
 
+if(EXISTS "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  message(STATUS "Flash memory size is set to: " ${FLASH_SIZE} "b")
+else()
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/2m_flash.overlay")
+  message(STATUS "Flash memory size is set to: 2mb")
+endif()
+
 if(DTC_OVERLAY_FILE)
   set(DTC_OVERLAY_FILE
-    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
+    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
     CACHE STRING "" FORCE
   )
 else()
-  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
+  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
 endif()
 
 set(CONF_FILE prj.conf)
diff --git a/examples/contact-sensor-app/telink/README.md b/examples/contact-sensor-app/telink/README.md
index 3131839f440452..cef7f3364dd7dd 100755
--- a/examples/contact-sensor-app/telink/README.md
+++ b/examples/contact-sensor-app/telink/README.md
@@ -31,6 +31,13 @@ You can use this example as a reference for creating your own application.
     $ west build -b <build_target>
     ```
 
+    Also use key `-DFLASH_SIZE`, if your board has memory size different from 2
+    MB, for example, `-DFLASH_SIZE=1m` or `-DFLASH_SIZE=1m`:
+
+    ```bash
+    $ west build -b tlsr9518adk80d -- -DFLASH_SIZE=4m
+    ```
+
 4. Flash binary:
 
     ```
@@ -119,7 +126,7 @@ feature for another Telink example:
 
 After build application with enabled OTA feature, use next binary files:
 
--   zephyr.bin - main binary to flash PCB (Use 2MB PCB).
+-   zephyr.bin - main binary to flash PCB (Use at least 2MB PCB).
 -   zephyr-ota.bin - binary for OTA Provider
 
 All binaries has the same SW version. To test OTA “zephyr-ota.bin” should have
diff --git a/examples/light-switch-app/telink/CMakeLists.txt b/examples/light-switch-app/telink/CMakeLists.txt
index 32b787a216c279..dd2bfed8dae203 100755
--- a/examples/light-switch-app/telink/CMakeLists.txt
+++ b/examples/light-switch-app/telink/CMakeLists.txt
@@ -31,13 +31,21 @@ else()
   unset(GLOBAL_DTC_OVERLAY_FILE)
 endif()
 
+if(EXISTS "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  message(STATUS "Flash memory size is set to: " ${FLASH_SIZE} "b")
+else()
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/2m_flash.overlay")
+  message(STATUS "Flash memory size is set to: 2mb")
+endif()
+
 if(DTC_OVERLAY_FILE)
   set(DTC_OVERLAY_FILE
-    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
+    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
     CACHE STRING "" FORCE
   )
 else()
-  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
+  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
 endif()
 
 set(CONF_FILE prj.conf)
diff --git a/examples/light-switch-app/telink/README.md b/examples/light-switch-app/telink/README.md
index 10e2500ab457fd..6dc9970c5c732e 100755
--- a/examples/light-switch-app/telink/README.md
+++ b/examples/light-switch-app/telink/README.md
@@ -36,6 +36,13 @@ creating your own application.
     $ west build -b <build_target>
     ```
 
+    Also use key `-DFLASH_SIZE`, if your board has memory size different from 2
+    MB, for example, `-DFLASH_SIZE=1m` or `-DFLASH_SIZE=1m`:
+
+    ```bash
+    $ west build -b tlsr9518adk80d -- -DFLASH_SIZE=4m
+    ```
+
 4. Flash binary:
 
     ```
@@ -240,7 +247,7 @@ feature for another Telink example:
 
 After build application with enabled OTA feature, use next binary files:
 
--   zephyr.bin - main binary to flash PCB (Use 2MB PCB).
+-   zephyr.bin - main binary to flash PCB (Use at least 2MB PCB).
 -   zephyr-ota.bin - binary for OTA Provider
 
 All binaries has the same SW version. To test OTA “zephyr-ota.bin” should have
diff --git a/examples/light-switch-app/telink/factory_data.overlay b/examples/light-switch-app/telink/factory_data.overlay
deleted file mode 100644
index 4f7289d9bd15ca..00000000000000
--- a/examples/light-switch-app/telink/factory_data.overlay
+++ /dev/null
@@ -1,22 +0,0 @@
-#
-#    Copyright (c) 2023 Project CHIP Authors
-#
-#    Licensed under the Apache License, Version 2.0 (the "License");
-#    you may not use this file except in compliance with the License.
-#    You may obtain a copy of the License at
-#
-#        http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS,
-#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#    See the License for the specific language governing permissions and
-#    limitations under the License.
-#
-
-# This file should be used as a configuration overlay to enable Factory Data.
-
-# Enable factory data support. 
-CONFIG_CHIP_FACTORY_DATA=y
-CONFIG_CHIP_FACTORY_DATA_BUILD=y
-CONFIG_CHIP_FACTORY_DATA_MERGE_WITH_FIRMWARE=y
diff --git a/examples/lighting-app/telink/CMakeLists.txt b/examples/lighting-app/telink/CMakeLists.txt
index 6a579b959110e4..e4dd1a4adc4094 100644
--- a/examples/lighting-app/telink/CMakeLists.txt
+++ b/examples/lighting-app/telink/CMakeLists.txt
@@ -48,13 +48,21 @@ else()
   unset(GLOBAL_DTC_OVERLAY_FILE)
 endif()
 
+if(EXISTS "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  message(STATUS "Flash memory size is set to: " ${FLASH_SIZE} "b")
+else()
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/2m_flash.overlay")
+  message(STATUS "Flash memory size is set to: 2mb")
+endif()
+
 if(DTC_OVERLAY_FILE)
   set(DTC_OVERLAY_FILE
-    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${USB_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
+    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${USB_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
     CACHE STRING "" FORCE
   )
 else()
-  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${USB_DTC_OVERLAY_FILE}  ${LOCAL_DTC_OVERLAY_FILE})
+  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${USB_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
 endif()
 
 set(CONF_FILE ${USB_CONF_OVERLAY_FILE} prj.conf)
diff --git a/examples/lighting-app/telink/README.md b/examples/lighting-app/telink/README.md
index b09df9c49fe3aa..666af084b2a8bf 100644
--- a/examples/lighting-app/telink/README.md
+++ b/examples/lighting-app/telink/README.md
@@ -34,6 +34,13 @@ a reference for creating your own application.
     $ west build -b <build_target>
     ```
 
+    Also use key `-DFLASH_SIZE`, if your board has memory size different from 2
+    MB, for example, `-DFLASH_SIZE=1m` or `-DFLASH_SIZE=1m`:
+
+    ```bash
+    $ west build -b tlsr9518adk80d -- -DFLASH_SIZE=4m
+    ```
+
 4. Flash binary:
 
     ```
@@ -205,7 +212,7 @@ feature for another Telink example:
 
 After build application with enabled OTA feature, use next binary files:
 
--   zephyr.bin - main binary to flash PCB (Use 2MB PCB).
+-   zephyr.bin - main binary to flash PCB (Use at least 2MB PCB).
 -   zephyr-ota.bin - binary for OTA Provider
 
 All binaries has the same SW version. To test OTA “zephyr-ota.bin” should have
diff --git a/examples/lighting-app/telink/factory_data.overlay b/examples/lighting-app/telink/factory_data.overlay
deleted file mode 100644
index 4f7289d9bd15ca..00000000000000
--- a/examples/lighting-app/telink/factory_data.overlay
+++ /dev/null
@@ -1,22 +0,0 @@
-#
-#    Copyright (c) 2023 Project CHIP Authors
-#
-#    Licensed under the Apache License, Version 2.0 (the "License");
-#    you may not use this file except in compliance with the License.
-#    You may obtain a copy of the License at
-#
-#        http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS,
-#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#    See the License for the specific language governing permissions and
-#    limitations under the License.
-#
-
-# This file should be used as a configuration overlay to enable Factory Data.
-
-# Enable factory data support. 
-CONFIG_CHIP_FACTORY_DATA=y
-CONFIG_CHIP_FACTORY_DATA_BUILD=y
-CONFIG_CHIP_FACTORY_DATA_MERGE_WITH_FIRMWARE=y
diff --git a/examples/lighting-app/telink/shell.overlay b/examples/lighting-app/telink/shell.overlay
deleted file mode 100644
index 6c4922bc475aeb..00000000000000
--- a/examples/lighting-app/telink/shell.overlay
+++ /dev/null
@@ -1,21 +0,0 @@
-#
-#    Copyright (c) 2023 Project CHIP Authors
-#
-#    Licensed under the Apache License, Version 2.0 (the "License");
-#    you may not use this file except in compliance with the License.
-#    You may obtain a copy of the License at
-#
-#        http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS,
-#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#    See the License for the specific language governing permissions and
-#    limitations under the License.
-#
-
-# This file should be used as a configuration overlay to enable Shell.
-
-# Enable Shell support. 
-CONFIG_SHELL=y
-CONFIG_CHIP_LIB_SHELL=y
diff --git a/examples/lock-app/telink/CMakeLists.txt b/examples/lock-app/telink/CMakeLists.txt
index c89c1695680006..10771bd371c76e 100755
--- a/examples/lock-app/telink/CMakeLists.txt
+++ b/examples/lock-app/telink/CMakeLists.txt
@@ -31,13 +31,21 @@ else()
   unset(GLOBAL_DTC_OVERLAY_FILE)
 endif()
 
+if(EXISTS "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  message(STATUS "Flash memory size is set to: " ${FLASH_SIZE} "b")
+else()
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/2m_flash.overlay")
+  message(STATUS "Flash memory size is set to: 2mb")
+endif()
+
 if(DTC_OVERLAY_FILE)
   set(DTC_OVERLAY_FILE
-    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
+    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
     CACHE STRING "" FORCE
   )
 else()
-  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
+  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
 endif()
 
 set(CONF_FILE prj.conf)
diff --git a/examples/lock-app/telink/README.md b/examples/lock-app/telink/README.md
index 9cca961b6262f6..2d8e0349d571a1 100755
--- a/examples/lock-app/telink/README.md
+++ b/examples/lock-app/telink/README.md
@@ -34,6 +34,13 @@ a reference for creating your own application.
     $ west build -b <build_target>
     ```
 
+    Also use key `-DFLASH_SIZE`, if your board has memory size different from 2
+    MB, for example, `-DFLASH_SIZE=1m` or `-DFLASH_SIZE=1m`:
+
+    ```bash
+    $ west build -b tlsr9518adk80d -- -DFLASH_SIZE=4m
+    ```
+
 4. Flash binary:
 
     ```
@@ -122,7 +129,7 @@ feature for another Telink example:
 
 After build application with enabled OTA feature, use next binary files:
 
--   zephyr.bin - main binary to flash PCB (Use 2MB PCB).
+-   zephyr.bin - main binary to flash PCB (Use at least 2MB PCB).
 -   zephyr-ota.bin - binary for OTA Provider
 
 All binaries has the same SW version. To test OTA “zephyr-ota.bin” should have
diff --git a/examples/ota-requestor-app/telink/CMakeLists.txt b/examples/ota-requestor-app/telink/CMakeLists.txt
index 2ae1595e8ee483..81c559cfa73127 100644
--- a/examples/ota-requestor-app/telink/CMakeLists.txt
+++ b/examples/ota-requestor-app/telink/CMakeLists.txt
@@ -31,13 +31,21 @@ else()
   unset(GLOBAL_DTC_OVERLAY_FILE)
 endif()
 
+if(EXISTS "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  message(STATUS "Flash memory size is set to: " ${FLASH_SIZE} "b")
+else()
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/2m_flash.overlay")
+  message(STATUS "Flash memory size is set to: 2mb")
+endif()
+
 if(DTC_OVERLAY_FILE)
   set(DTC_OVERLAY_FILE
-    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
+    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
     CACHE STRING "" FORCE
   )
 else()
-  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
+  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
 endif()
 
 set(CONF_FILE prj.conf)
diff --git a/examples/ota-requestor-app/telink/Readme.md b/examples/ota-requestor-app/telink/Readme.md
index 805f70a0d5435c..867f498f9df917 100755
--- a/examples/ota-requestor-app/telink/Readme.md
+++ b/examples/ota-requestor-app/telink/Readme.md
@@ -27,6 +27,13 @@
     $ west build -b <build_target>
     ```
 
+    Also use key `-DFLASH_SIZE`, if your board has memory size different from 2
+    MB, for example, `-DFLASH_SIZE=1m` or `-DFLASH_SIZE=1m`:
+
+    ```bash
+    $ west build -b tlsr9518adk80d -- -DFLASH_SIZE=4m
+    ```
+
 4. Flash binary:
 
     ```
@@ -106,14 +113,15 @@ feature for another Telink example:
 
 -   set CONFIG_CHIP_OTA_REQUESTOR=y in corresponding "prj.conf" configuration
     file.
--   remove "boards/tlsr9518adk80d.overlay" file to enable 2MB flash storage.
 
 After build application with enabled OTA feature, use next binary files:
 
--   zephyr_final.bin - main binary to flash PCB (Use 2MB PCB).
+-   zephyr.bin - main binary to flash PCB (Use at least 2MB PCB).
 -   zephyr-ota.bin - binary for OTA Provider
--   zephyr.bin - ignore this file.
--   zephyr.signed.bin - ignore this file.
+
+All binaries has the same SW version. To test OTA “zephyr-ota.bin” should have
+higher SW version than base SW. Set CONFIG_CHIP_DEVICE_SOFTWARE_VERSION=2 in
+corresponding “prj.conf” configuration file.
 
 Usage of OTA:
 
diff --git a/examples/platform/telink/common/include/AppTaskCommon.h b/examples/platform/telink/common/include/AppTaskCommon.h
index 7204df2ba4b7a9..6652a55210f601 100644
--- a/examples/platform/telink/common/include/AppTaskCommon.h
+++ b/examples/platform/telink/common/include/AppTaskCommon.h
@@ -76,8 +76,12 @@ class AppTaskCommon
     {
         kButtonId_ExampleAction = 1,
         kButtonId_FactoryReset,
+#if APP_USE_THREAD_START_BUTTON
         kButtonId_StartThread,
+#endif
+#if APP_USE_BLE_START_BUTTON
         kButtonId_StartBleAdv
+#endif
     } ButtonId;
 #endif
 
diff --git a/examples/platform/telink/common/src/AppTaskCommon.cpp b/examples/platform/telink/common/src/AppTaskCommon.cpp
index 0638b64b1e355f..41899c8a1f9c73 100644
--- a/examples/platform/telink/common/src/AppTaskCommon.cpp
+++ b/examples/platform/telink/common/src/AppTaskCommon.cpp
@@ -357,12 +357,16 @@ void AppTaskCommon::ButtonEventHandler(ButtonId_t btnId, bool btnPressed)
     case kButtonId_FactoryReset:
         FactoryResetButtonEventHandler();
         break;
+#if APP_USE_THREAD_START_BUTTON
     case kButtonId_StartThread:
         StartThreadButtonEventHandler();
         break;
+#endif
+#if APP_USE_BLE_START_BUTTON
     case kButtonId_StartBleAdv:
         StartBleAdvButtonEventHandler();
         break;
+#endif
     }
 }
 #endif
diff --git a/examples/pump-app/telink/CMakeLists.txt b/examples/pump-app/telink/CMakeLists.txt
index bed10accba40b8..8d42d5f79762c5 100755
--- a/examples/pump-app/telink/CMakeLists.txt
+++ b/examples/pump-app/telink/CMakeLists.txt
@@ -31,13 +31,21 @@ else()
   unset(GLOBAL_DTC_OVERLAY_FILE)
 endif()
 
+if(EXISTS "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  message(STATUS "Flash memory size is set to: " ${FLASH_SIZE} "b")
+else()
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/2m_flash.overlay")
+  message(STATUS "Flash memory size is set to: 2mb")
+endif()
+
 if(DTC_OVERLAY_FILE)
   set(DTC_OVERLAY_FILE
-    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
+    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
     CACHE STRING "" FORCE
   )
 else()
-  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
+  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
 endif()
 
 set(CONF_FILE prj.conf)
diff --git a/examples/pump-app/telink/README.md b/examples/pump-app/telink/README.md
index ca97a9ec18c32d..a5a656c68adeea 100755
--- a/examples/pump-app/telink/README.md
+++ b/examples/pump-app/telink/README.md
@@ -35,6 +35,13 @@ reference for creating your own pump application.
     $ west build -b <build_target>
     ```
 
+    Also use key `-DFLASH_SIZE`, if your board has memory size different from 2
+    MB, for example, `-DFLASH_SIZE=1m` or `-DFLASH_SIZE=1m`:
+
+    ```bash
+    $ west build -b tlsr9518adk80d -- -DFLASH_SIZE=4m
+    ```
+
 4. Flash binary:
 
     ```
@@ -123,7 +130,7 @@ feature for another Telink example:
 
 After build application with enabled OTA feature, use next binary files:
 
--   zephyr.bin - main binary to flash PCB (Use 2MB PCB).
+-   zephyr.bin - main binary to flash PCB (Use at least 2MB PCB).
 -   zephyr-ota.bin - binary for OTA Provider
 
 All binaries has the same SW version. To test OTA “zephyr-ota.bin” should have
diff --git a/examples/pump-controller-app/telink/CMakeLists.txt b/examples/pump-controller-app/telink/CMakeLists.txt
index ba1298e6e30525..dca66f8dd31702 100755
--- a/examples/pump-controller-app/telink/CMakeLists.txt
+++ b/examples/pump-controller-app/telink/CMakeLists.txt
@@ -31,13 +31,21 @@ else()
   unset(GLOBAL_DTC_OVERLAY_FILE)
 endif()
 
+if(EXISTS "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  message(STATUS "Flash memory size is set to: " ${FLASH_SIZE} "b")
+else()
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/2m_flash.overlay")
+  message(STATUS "Flash memory size is set to: 2mb")
+endif()
+
 if(DTC_OVERLAY_FILE)
   set(DTC_OVERLAY_FILE
-    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
+    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
     CACHE STRING "" FORCE
   )
 else()
-  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
+  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
 endif()
 
 set(CONF_FILE prj.conf)
diff --git a/examples/pump-controller-app/telink/README.md b/examples/pump-controller-app/telink/README.md
index 41089fcc94a6ac..14153386de3b5e 100755
--- a/examples/pump-controller-app/telink/README.md
+++ b/examples/pump-controller-app/telink/README.md
@@ -36,6 +36,13 @@ your own pump application.
     $ west build -b <build_target>
     ```
 
+    Also use key `-DFLASH_SIZE`, if your board has memory size different from 2
+    MB, for example, `-DFLASH_SIZE=1m` or `-DFLASH_SIZE=1m`:
+
+    ```bash
+    $ west build -b tlsr9518adk80d -- -DFLASH_SIZE=4m
+    ```
+
 4. Flash binary:
 
     ```
@@ -124,7 +131,7 @@ feature for another Telink example:
 
 After build application with enabled OTA feature, use next binary files:
 
--   zephyr.bin - main binary to flash PCB (Use 2MB PCB).
+-   zephyr.bin - main binary to flash PCB (Use at least 2MB PCB).
 -   zephyr-ota.bin - binary for OTA Provider
 
 All binaries has the same SW version. To test OTA “zephyr-ota.bin” should have
diff --git a/examples/resource-monitoring-app/telink/CMakeLists.txt b/examples/resource-monitoring-app/telink/CMakeLists.txt
index 92d26f99545850..dde35e61e378b8 100644
--- a/examples/resource-monitoring-app/telink/CMakeLists.txt
+++ b/examples/resource-monitoring-app/telink/CMakeLists.txt
@@ -31,13 +31,21 @@ else()
   unset(GLOBAL_DTC_OVERLAY_FILE)
 endif()
 
+if(EXISTS "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  message(STATUS "Flash memory size is set to: " ${FLASH_SIZE} "b")
+else()
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/2m_flash.overlay")
+  message(STATUS "Flash memory size is set to: 2mb")
+endif()
+
 if(DTC_OVERLAY_FILE)
   set(DTC_OVERLAY_FILE
-    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
+    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
     CACHE STRING "" FORCE
   )
 else()
-  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
+  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
 endif()
 
 set(CONF_FILE prj.conf)
diff --git a/examples/resource-monitoring-app/telink/README.md b/examples/resource-monitoring-app/telink/README.md
index 13962d281f43ac..3b6645171511e0 100644
--- a/examples/resource-monitoring-app/telink/README.md
+++ b/examples/resource-monitoring-app/telink/README.md
@@ -31,6 +31,13 @@ You can use this example as a reference for creating your own application.
     $ west build -b <build_target>
     ```
 
+    Also use key `-DFLASH_SIZE`, if your board has memory size different from 2
+    MB, for example, `-DFLASH_SIZE=1m` or `-DFLASH_SIZE=1m`:
+
+    ```bash
+    $ west build -b tlsr9518adk80d -- -DFLASH_SIZE=4m
+    ```
+
 4. Flash binary:
 
     ```
@@ -115,7 +122,7 @@ feature for another Telink example:
 
 After build application with enabled OTA feature, use next binary files:
 
--   zephyr.bin - main binary to flash PCB (Use 2MB PCB).
+-   zephyr.bin - main binary to flash PCB (Use at least 2MB PCB).
 -   zephyr-ota.bin - binary for OTA Provider
 
 All binaries has the same SW version. To test OTA “zephyr-ota.bin” should have
diff --git a/examples/shell/telink/CMakeLists.txt b/examples/shell/telink/CMakeLists.txt
index fe3d961ca02758..0bd2d490411bec 100755
--- a/examples/shell/telink/CMakeLists.txt
+++ b/examples/shell/telink/CMakeLists.txt
@@ -31,13 +31,21 @@ else()
   unset(GLOBAL_DTC_OVERLAY_FILE)
 endif()
 
+if(EXISTS "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  message(STATUS "Flash memory size is set to: " ${FLASH_SIZE} "b")
+else()
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/2m_flash.overlay")
+  message(STATUS "Flash memory size is set to: 2mb")
+endif()
+
 if(DTC_OVERLAY_FILE)
   set(DTC_OVERLAY_FILE
-    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
+    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
     CACHE STRING "" FORCE
   )
 else()
-  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
+  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
 endif()
 
 set(CONF_FILE  prj.conf)
diff --git a/examples/shell/telink/README.md b/examples/shell/telink/README.md
index 19d115dc64cca1..2ff00f0046473f 100755
--- a/examples/shell/telink/README.md
+++ b/examples/shell/telink/README.md
@@ -31,6 +31,13 @@ You can use this example as a reference for creating your own application.
     $ west build -b <build_target>
     ```
 
+    Also use key `-DFLASH_SIZE`, if your board has memory size different from 2
+    MB, for example, `-DFLASH_SIZE=1m` or `-DFLASH_SIZE=1m`:
+
+    ```bash
+    $ west build -b tlsr9518adk80d -- -DFLASH_SIZE=4m
+    ```
+
 4. Flash binary:
 
     ```
diff --git a/examples/smoke-co-alarm-app/telink/CMakeLists.txt b/examples/smoke-co-alarm-app/telink/CMakeLists.txt
index 9fa08fbdb436b1..e916aa52f9425b 100755
--- a/examples/smoke-co-alarm-app/telink/CMakeLists.txt
+++ b/examples/smoke-co-alarm-app/telink/CMakeLists.txt
@@ -31,13 +31,21 @@ else()
   unset(GLOBAL_DTC_OVERLAY_FILE)
 endif()
 
+if(EXISTS "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  message(STATUS "Flash memory size is set to: " ${FLASH_SIZE} "b")
+else()
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/2m_flash.overlay")
+  message(STATUS "Flash memory size is set to: 2mb")
+endif()
+
 if(DTC_OVERLAY_FILE)
   set(DTC_OVERLAY_FILE
-    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
+    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
     CACHE STRING "" FORCE
   )
 else()
-  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
+  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
 endif()
 
 set(CONF_FILE prj.conf)
diff --git a/examples/smoke-co-alarm-app/telink/README.md b/examples/smoke-co-alarm-app/telink/README.md
index 185f68213a3271..f36ecb97d5925e 100755
--- a/examples/smoke-co-alarm-app/telink/README.md
+++ b/examples/smoke-co-alarm-app/telink/README.md
@@ -31,6 +31,13 @@ You can use this example as a reference for creating your own application.
     $ west build -b <build_target>
     ```
 
+    Also use key `-DFLASH_SIZE`, if your board has memory size different from 2
+    MB, for example, `-DFLASH_SIZE=1m` or `-DFLASH_SIZE=1m`:
+
+    ```bash
+    $ west build -b tlsr9518adk80d -- -DFLASH_SIZE=4m
+    ```
+
 4. Flash binary:
 
     ```
@@ -121,7 +128,7 @@ feature for another Telink example:
 
 After build application with enabled OTA feature, use next binary files:
 
--   zephyr.bin - main binary to flash PCB (Use 2MB PCB).
+-   zephyr.bin - main binary to flash PCB (Use at least 2MB PCB).
 -   zephyr-ota.bin - binary for OTA Provider
 
 All binaries has the same SW version. To test OTA “zephyr-ota.bin” should have
diff --git a/examples/temperature-measurement-app/telink/CMakeLists.txt b/examples/temperature-measurement-app/telink/CMakeLists.txt
index 53c2781458cb5c..fd8a6e33132970 100644
--- a/examples/temperature-measurement-app/telink/CMakeLists.txt
+++ b/examples/temperature-measurement-app/telink/CMakeLists.txt
@@ -31,13 +31,21 @@ else()
   unset(GLOBAL_DTC_OVERLAY_FILE)
 endif()
 
+if(EXISTS "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  message(STATUS "Flash memory size is set to: " ${FLASH_SIZE} "b")
+else()
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/2m_flash.overlay")
+  message(STATUS "Flash memory size is set to: 2mb")
+endif()
+
 if(DTC_OVERLAY_FILE)
   set(DTC_OVERLAY_FILE
-    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
+    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
     CACHE STRING "" FORCE
   )
 else()
-  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
+  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
 endif()
 
 set(CONF_FILE prj.conf)
diff --git a/examples/temperature-measurement-app/telink/README.md b/examples/temperature-measurement-app/telink/README.md
index ea722c693d7679..fda373eedf2ca9 100644
--- a/examples/temperature-measurement-app/telink/README.md
+++ b/examples/temperature-measurement-app/telink/README.md
@@ -35,6 +35,13 @@ creating your own application.
     $ west build -b <build_target>
     ```
 
+    Also use key `-DFLASH_SIZE`, if your board has memory size different from 2
+    MB, for example, `-DFLASH_SIZE=1m` or `-DFLASH_SIZE=1m`:
+
+    ```bash
+    $ west build -b tlsr9518adk80d -- -DFLASH_SIZE=4m
+    ```
+
 4. Flash binary:
 
     ```
@@ -104,7 +111,7 @@ feature for another Telink example:
 
 After build application with enabled OTA feature, use next binary files:
 
--   zephyr.bin - main binary to flash PCB (Use 2MB PCB).
+-   zephyr.bin - main binary to flash PCB (Use at least 2MB PCB).
 -   zephyr-ota.bin - binary for OTA Provider
 
 All binaries has the same SW version. To test OTA “zephyr-ota.bin” should have
diff --git a/examples/thermostat/telink/CMakeLists.txt b/examples/thermostat/telink/CMakeLists.txt
index 9abe4bd422a37f..f1588efa2c48e7 100755
--- a/examples/thermostat/telink/CMakeLists.txt
+++ b/examples/thermostat/telink/CMakeLists.txt
@@ -31,13 +31,21 @@ else()
   unset(GLOBAL_DTC_OVERLAY_FILE)
 endif()
 
+if(EXISTS "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  message(STATUS "Flash memory size is set to: " ${FLASH_SIZE} "b")
+else()
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/2m_flash.overlay")
+  message(STATUS "Flash memory size is set to: 2mb")
+endif()
+
 if(DTC_OVERLAY_FILE)
   set(DTC_OVERLAY_FILE
-    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
+    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
     CACHE STRING "" FORCE
   )
 else()
-  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
+  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
 endif()
 
 set(CONF_FILE prj.conf)
diff --git a/examples/thermostat/telink/Readme.md b/examples/thermostat/telink/Readme.md
index a1ff048488b436..b73e5866b03173 100755
--- a/examples/thermostat/telink/Readme.md
+++ b/examples/thermostat/telink/Readme.md
@@ -31,6 +31,13 @@ You can use this example as a reference for creating your own application.
     $ west build -b <build_target>
     ```
 
+    Also use key `-DFLASH_SIZE`, if your board has memory size different from 2
+    MB, for example, `-DFLASH_SIZE=1m` or `-DFLASH_SIZE=1m`:
+
+    ```bash
+    $ west build -b tlsr9518adk80d -- -DFLASH_SIZE=4m
+    ```
+
 4. Flash binary:
 
     ```
@@ -115,7 +122,7 @@ feature for another Telink example:
 
 After build application with enabled OTA feature, use next binary files:
 
--   zephyr.bin - main binary to flash PCB (Use 2MB PCB).
+-   zephyr.bin - main binary to flash PCB (Use at least 2MB PCB).
 -   zephyr-ota.bin - binary for OTA Provider
 
 All binaries has the same SW version. To test OTA “zephyr-ota.bin” should have
diff --git a/examples/window-app/telink/CMakeLists.txt b/examples/window-app/telink/CMakeLists.txt
index 5b695943fd3f1b..781e487c9a4ff6 100644
--- a/examples/window-app/telink/CMakeLists.txt
+++ b/examples/window-app/telink/CMakeLists.txt
@@ -31,13 +31,21 @@ else()
   unset(GLOBAL_DTC_OVERLAY_FILE)
 endif()
 
+if(EXISTS "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/${FLASH_SIZE}_flash.overlay")
+  message(STATUS "Flash memory size is set to: " ${FLASH_SIZE} "b")
+else()
+  set(FLASH_DTC_OVERLAY_FILE "${CHIP_ROOT}/src/platform/telink/2m_flash.overlay")
+  message(STATUS "Flash memory size is set to: 2mb")
+endif()
+
 if(DTC_OVERLAY_FILE)
   set(DTC_OVERLAY_FILE
-    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
+    "${DTC_OVERLAY_FILE} ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE}"
     CACHE STRING "" FORCE
   )
 else()
-  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
+  set(DTC_OVERLAY_FILE ${GLOBAL_DTC_OVERLAY_FILE} ${FLASH_DTC_OVERLAY_FILE} ${LOCAL_DTC_OVERLAY_FILE})
 endif()
 
 set(CONF_FILE prj.conf)
diff --git a/examples/window-app/telink/README.md b/examples/window-app/telink/README.md
index 876764c2fb0b88..372dbcf8dba809 100644
--- a/examples/window-app/telink/README.md
+++ b/examples/window-app/telink/README.md
@@ -34,6 +34,13 @@ for creating your own application.
     $ west build -b <build_target>
     ```
 
+    Also use key `-DFLASH_SIZE`, if your board has memory size different from 2
+    MB, for example, `-DFLASH_SIZE=1m` or `-DFLASH_SIZE=1m`:
+
+    ```bash
+    $ west build -b tlsr9518adk80d -- -DFLASH_SIZE=4m
+    ```
+
 4. Flash binary:
 
     ```
@@ -186,7 +193,7 @@ feature for another Telink example:
 
 After build application with enabled OTA feature, use next binary files:
 
--   zephyr.bin - main binary to flash PCB (Use 2MB PCB).
+-   zephyr.bin - main binary to flash PCB (Use at least 2MB PCB).
 -   zephyr-ota.bin - binary for OTA Provider
 
 All binaries has the same SW version. To test OTA “zephyr-ota.bin” should have
diff --git a/scripts/build/build/targets.py b/scripts/build/build/targets.py
index 17807371745ea6..6d755495b50969 100755
--- a/scripts/build/build/targets.py
+++ b/scripts/build/build/targets.py
@@ -719,9 +719,11 @@ def BuildTelinkTarget():
         TargetPart('window-covering', app=TelinkApp.WINDOW_COVERING),
     ])
 
+    target.AppendModifier('ota', enable_ota=True)
     target.AppendModifier('shell', enable_shell=True)
     target.AppendModifier('rpc', enable_rpcs=True)
     target.AppendModifier('factory-data', enable_factory_data=True)
+    target.AppendModifier('4mb', enable_4mb_flash=True)
 
     return target
 
diff --git a/scripts/build/builders/telink.py b/scripts/build/builders/telink.py
index 9487a17a36dbb0..39bdbe9675a2ad 100644
--- a/scripts/build/builders/telink.py
+++ b/scripts/build/builders/telink.py
@@ -136,15 +136,19 @@ def __init__(self,
                  runner,
                  app: TelinkApp = TelinkApp,
                  board: TelinkBoard = TelinkBoard,
+                 enable_ota: bool = False,
                  enable_shell: bool = False,
                  enable_rpcs: bool = False,
-                 enable_factory_data: bool = False):
+                 enable_factory_data: bool = False,
+                 enable_4mb_flash: bool = False):
         super(TelinkBuilder, self).__init__(root, runner)
         self.app = app
         self.board = board
+        self.enable_ota = enable_ota
         self.enable_shell = enable_shell
         self.enable_rpcs = enable_rpcs
         self.enable_factory_data = enable_factory_data
+        self.enable_4mb_flash = enable_4mb_flash
 
     def get_cmd_prefixes(self):
         if not self._runner.dry_run:
@@ -165,14 +169,20 @@ def generate(self):
             return
 
         flags = []
+        if self.enable_ota:
+            flags.append("-DCONFIG_CHIP_OTA_REQUESTOR=y")
+
         if self.enable_shell:
-            flags.append("-DOVERLAY_CONFIG=shell.overlay")
+            flags.append("-DCONFIG_CHIP_LIB_SHELL=y")
 
         if self.enable_rpcs:
             flags.append("-DOVERLAY_CONFIG=rpc.overlay")
 
         if self.enable_factory_data:
-            flags.append("-DOVERLAY_CONFIG=factory_data.overlay")
+            flags.append("-DCONFIG_CHIP_FACTORY_DATA=y -DCONFIG_CHIP_FACTORY_DATA_BUILD=y -DCONFIG_CHIP_FACTORY_DATA_MERGE_WITH_FIRMWARE=y")
+
+        if self.enable_4mb_flash:
+            flags.append("-DFLASH_SIZE=4m")
 
         if self.options.pregen_dir:
             flags.append(f"-DCHIP_CODEGEN_PREGEN_DIR={shlex.quote(self.options.pregen_dir)}")
diff --git a/scripts/build/testdata/all_targets_linux_x64.txt b/scripts/build/testdata/all_targets_linux_x64.txt
index 4c65d6c04db464..c325aa52fb57d9 100644
--- a/scripts/build/testdata/all_targets_linux_x64.txt
+++ b/scripts/build/testdata/all_targets_linux_x64.txt
@@ -22,5 +22,5 @@ nrf-native-posix-64-tests
 qpg-qpg6105-{lock,light,shell,persistent-storage}
 stm32-stm32wb5mm-dk-light
 tizen-arm-{all-clusters,all-clusters-minimal,chip-tool,light,tests}[-no-ble][-no-thread][-no-wifi][-asan][-ubsan]
-telink-{tlsr9518adk80d,tlsr9528a}-{air-quality-sensor,all-clusters,all-clusters-minimal,bridge,contact-sensor,light,light-switch,lock,ota-requestor,pump,pump-controller,resource-monitoring,shell,smoke-co-alarm,temperature-measurement,thermostat,window-covering}[-shell][-rpc][-factory-data]
+telink-{tlsr9518adk80d,tlsr9528a}-{air-quality-sensor,all-clusters,all-clusters-minimal,bridge,contact-sensor,light,light-switch,lock,ota-requestor,pump,pump-controller,resource-monitoring,shell,smoke-co-alarm,temperature-measurement,thermostat,window-covering}[-ota][-shell][-rpc][-factory-data][-4mb]
 openiotsdk-{shell,lock}[-mbedtls][-psa]
diff --git a/scripts/tools/telink/mfg_tool.py b/scripts/tools/telink/mfg_tool.py
index 3725707d7c9c78..c55e1fe4ca3c4a 100644
--- a/scripts/tools/telink/mfg_tool.py
+++ b/scripts/tools/telink/mfg_tool.py
@@ -642,10 +642,9 @@ def base64_str(s): return base64.b64decode(s)
     basic_args.add_argument('--part_number', type=str, required=False, help='Provide human-readable product number')
 
     part_gen_args = parser.add_argument_group('Partition generator options')
-    part_gen_args.add_argument('--offset', type=allow_any_int, default=0x107000,
+    part_gen_args.add_argument('--offset', type=allow_any_int,
                                help='Partition offset - an address in devices NVM memory, where factory data will be stored')
-    part_gen_args.add_argument('--size', type=allow_any_int, default=0x1000,
-                               help='The maximum partition size')
+    part_gen_args.add_argument('--size', type=allow_any_int, help='The maximum partition size')
 
     args = parser.parse_args()
 
diff --git a/src/platform/telink/1m_flash.overlay b/src/platform/telink/1m_flash.overlay
new file mode 100644
index 00000000000000..698d7721d5012c
--- /dev/null
+++ b/src/platform/telink/1m_flash.overlay
@@ -0,0 +1,39 @@
+/*
+ * In case of change partitions size - check if factory data size is correct
+ * in matter/connectedhomeip/config/telink/chip-module/CMakeLists.txt, variable "FD_SEEK"
+ * Also check matter/connectedhomeip/config/telink/chip-module/generate_factory_data.cmake,
+ * variable "FD_OFFSET" and argument "size"
+ */
+
+&flash {
+	reg = <0x20000000 0x100000>;
+
+	partitions {
+		/delete-node/ partition@0;
+		/delete-node/ partition@20000;
+		/delete-node/ partition@88000;
+		/delete-node/ partition@f0000;
+		/delete-node/ partition@f4000;
+		/delete-node/ partition@fe000;
+		boot_partition: partition@0 {
+			label = "mcuboot";
+			reg = <0x00000000 0x19000>;
+		};
+		slot0_partition: partition@19000 {
+			label = "image-0";
+			reg = <0x19000 0xDC000>;
+		};
+		factory_partition: partition@F5000 {
+			label = "factory-data";
+			reg = <0xF5000 0x1000>;
+		};
+		storage_partition: partition@F6000 {
+			label = "storage";
+			reg = <0xF6000 0x8000>;
+		};
+		vendor_partition: partition@fe000 {
+			label = "vendor-data";
+			reg = <0xfe000 0x2000>;
+		};
+	};
+};
diff --git a/src/platform/telink/2m_flash.overlay b/src/platform/telink/2m_flash.overlay
new file mode 100644
index 00000000000000..8a12e9c02aad02
--- /dev/null
+++ b/src/platform/telink/2m_flash.overlay
@@ -0,0 +1,43 @@
+/*
+ * In case of change partitions size - check if factory data size is correct
+ * in matter/connectedhomeip/config/telink/chip-module/CMakeLists.txt, variable "FD_SEEK"
+ * Also check matter/connectedhomeip/config/telink/chip-module/generate_factory_data.cmake,
+ * variable "FD_OFFSET" and argument "size"
+ */
+
+&flash {
+	reg = <0x20000000 0x200000>;
+
+	partitions {
+		/delete-node/ partition@0;
+		/delete-node/ partition@20000;
+		/delete-node/ partition@88000;
+		/delete-node/ partition@f0000;
+		/delete-node/ partition@f4000;
+		/delete-node/ partition@fe000;
+		boot_partition: partition@0 {
+			label = "mcuboot";
+			reg = <0x00000000 0x19000>;
+		};
+		slot0_partition: partition@19000 {
+			label = "image-0";
+			reg = <0x19000 0xee000>;
+		};
+		factory_partition: partition@107000 {
+			label = "factory-data";
+			reg = <0x107000 0x1000>;
+		};
+		storage_partition: partition@108000 {
+			label = "storage";
+			reg = <0x108000 0x8000>;
+		};
+		slot1_partition: partition@110000 {
+			label = "image-1";
+			reg = <0x110000 0xee000>;
+		};
+		vendor_partition: partition@1fe000 {
+			label = "vendor-data";
+			reg = <0x1fe000 0x2000>;
+		};
+	};
+};
diff --git a/src/platform/telink/4m_flash.overlay b/src/platform/telink/4m_flash.overlay
new file mode 100644
index 00000000000000..52a3f1c9a6f2fc
--- /dev/null
+++ b/src/platform/telink/4m_flash.overlay
@@ -0,0 +1,43 @@
+/*
+ * In case of change partitions size - check if factory data size is correct
+ * in matter/connectedhomeip/config/telink/chip-module/CMakeLists.txt, variable "FD_SEEK"
+ * Also check matter/connectedhomeip/config/telink/chip-module/generate_factory_data.cmake,
+ * variable "FD_OFFSET" and argument "size"
+ */
+
+&flash {
+	reg = <0x20000000 0x400000>;
+
+	partitions {
+		/delete-node/ partition@0;
+		/delete-node/ partition@20000;
+		/delete-node/ partition@88000;
+		/delete-node/ partition@f0000;
+		/delete-node/ partition@f4000;
+		/delete-node/ partition@fe000;
+		boot_partition: partition@0 {
+			label = "mcuboot";
+			reg = <0x00000000 0x19000>;
+		};
+		slot0_partition: partition@19000 {
+			label = "image-0";
+			reg = <0x19000 0x1ee000>;
+		};
+		factory_partition: partition@207000 {
+			label = "factory-data";
+			reg = <0x207000 0x1000>;
+		};
+		storage_partition: partition@208000 {
+			label = "storage";
+			reg = <0x208000 0x8000>;
+		};
+		slot1_partition: partition@210000 {
+			label = "image-1";
+			reg = <0x210000 0x1ee000>;
+		};
+		vendor_partition: partition@3fe000 {
+			label = "vendor-data";
+			reg = <0x3fe000 0x2000>;
+		};
+	};
+};
diff --git a/src/platform/telink/tlsr9518adk80d.overlay b/src/platform/telink/tlsr9518adk80d.overlay
index c419f8116441e5..7ad86efd5edc0a 100644
--- a/src/platform/telink/tlsr9518adk80d.overlay
+++ b/src/platform/telink/tlsr9518adk80d.overlay
@@ -78,39 +78,3 @@
 	pinctrl-0 = <&pwm_ch0_pb4_default &pwm_ch1_pb5_default &pwm_ch2_pe2_default &pwm_ch3_pe0_default>;
 };
 
-&flash {
-	reg = <0x20000000 0x200000>;
-
-	partitions {
-		/delete-node/ partition@0;
-		/delete-node/ partition@20000;
-		/delete-node/ partition@88000;
-		/delete-node/ partition@f0000;
-		/delete-node/ partition@f4000;
-		/delete-node/ partition@fe000;
-		boot_partition: partition@0 {
-			label = "mcuboot";
-			reg = <0x00000000 0x19000>;
-		};
-		slot0_partition: partition@19000 {
-			label = "image-0";
-			reg = <0x19000 0xee000>;
-		};
-		factory_partition: partition@107000 {
-			label = "factory-data";
-			reg = <0x107000 0x1000>;
-		};
-		storage_partition: partition@108000 {
-			label = "storage";
-			reg = <0x108000 0x8000>;
-		};
-		slot1_partition: partition@110000 {
-			label = "image-1";
-			reg = <0x110000 0xee000>;
-		};
-		vendor_partition: partition@1fe000 {
-			label = "vendor-data";
-			reg = <0x1fe000 0x2000>;
-		};
-	};
-};
diff --git a/src/platform/telink/tlsr9528a.overlay b/src/platform/telink/tlsr9528a.overlay
index c57cc0eb0341e2..9ba662d284ef37 100644
--- a/src/platform/telink/tlsr9528a.overlay
+++ b/src/platform/telink/tlsr9528a.overlay
@@ -78,39 +78,3 @@
 	pinctrl-0 = <&pwm_ch0_pd0_default &pwm_ch1_pd1_default &pwm_ch2_pe2_default &pwm_ch3_pe0_default>;
 };
 
-&flash {
-	reg = <0x20000000 0x200000>;
-
-	partitions {
-		/delete-node/ partition@0;
-		/delete-node/ partition@20000;
-		/delete-node/ partition@88000;
-		/delete-node/ partition@f0000;
-		/delete-node/ partition@f4000;
-		/delete-node/ partition@fe000;
-		boot_partition: partition@0 {
-			label = "mcuboot";
-			reg = <0x00000000 0x19000>;
-		};
-		slot0_partition: partition@19000 {
-			label = "image-0";
-			reg = <0x19000 0xee000>;
-		};
-		factory_partition: partition@107000 {
-			label = "factory-data";
-			reg = <0x107000 0x1000>;
-		};
-		storage_partition: partition@108000 {
-			label = "storage";
-			reg = <0x108000 0x8000>;
-		};
-		slot1_partition: partition@110000 {
-			label = "image-1";
-			reg = <0x110000 0xee000>;
-		};
-		vendor_partition: partition@1fe000 {
-			label = "vendor-data";
-			reg = <0x1fe000 0x2000>;
-		};
-	};
-};