add update procedure for Fxblox Lite (RPI)

docs/release/functionyard/fxblox-hardware-rpi.md

@@ -0,0 +1,40 @@
+---
+title: FxBlox Hardware rpi
+id: fxblox-hardware-rpi
+---
+
+## Updadting Your FxBlox Lite (RPI)
+
+### Step 1: Download the firmware
+
+- **Download**: Find `rpi_update.zip` in the [latest release](https://github.com/functionland/rk1-image/releases/latest) under the Assets section on GitHub.
+
+- Download: Download `Win32 Disk Imager` for writing update firmware to USB. 
+https://win32diskimager.org/
+
+### Step 2: Unzip and Write image to USB
+
+1. **Unzipping**: Unzip `rpi_update.zip` on your computer. after unzipping there must be a .img  file.
+2. **Writing Image to USB**:  
+    - In Image File section select `rpi_update.img` file.
+    - In Device section select USB Disk Partion letter.
+    - click Write to start flashing USB Disk.
+
+    ![Win32 Disk Imager](images/win32DiskImager.png)
+
+### Step 3: Updating FxBlox
+
+1. **Turn Off**: Ensure your FxBlox (RPI) Lite is turned off.
+2. **USB Connection**: Connect the USB drive to one of USB port of the FxBlox Lite (RPI).
+3. **Power On**: Turn on your FxBlox Lite (RPI). after about 30 Sec The LED will blink yellow for 5 time that indicating the update process started.
+4. in update process the LED blinks red and green. this phase is very critical, and any mistake in this phase cause breaking FxBlox Lite (RPI). 
+5. **Final Steps**:
+   - After about 10 minutes, the LED blinks red only. Remove the USB drive.
+   - Restart the FxBlox lite (RPI) by unplugging and plugging back the power.
+
+6. **Wait 10 min after First Boot**: On the first boot post-update, the FxBlox Lite (RPI) automatically reboots 3 times, taking about 10 minutes to fully process the update and show the FxBlox Lite (RPI) WiFi. Please wait for `10 minutes` before doing anything. You may think it is done or stuck or it is turned off, but be sure that it is processing hte update for `10 minutes` after the frist boot. We will add LED indicators in the future updates
+
+### Step 4: Post-Update
+
+- Future firmware updates will be automatic, eliminating the need for manual updates.
+