diff --git a/examples/platform/silabs/efr32/uart.cpp b/examples/platform/silabs/efr32/uart.cpp
index 8fab5f11fe4b00..650f482bc65346 100644
--- a/examples/platform/silabs/efr32/uart.cpp
+++ b/examples/platform/silabs/efr32/uart.cpp
@@ -134,8 +134,6 @@ static uint8_t sRxFifoBuffer[MAX_BUFFER_SIZE];
 static Fifo_t sReceiveFifo;
 
 static void UART_rx_callback(UARTDRV_Handle_t handle, Ecode_t transferStatus, uint8_t * data, UARTDRV_Count_t transferCount);
-static void UART_tx_callback(struct UARTDRV_HandleData * handle, Ecode_t transferStatus, uint8_t * data,
-                             UARTDRV_Count_t transferCount);
 static void uartSendBytes(uint8_t * buffer, uint16_t nbOfBytes);
 
 static bool InitFifo(Fifo_t * fifo, uint8_t * pDataBuffer, uint16_t bufferSize)
@@ -474,14 +472,15 @@ void uartSendBytes(uint8_t * buffer, uint16_t nbOfBytes)
 #endif
 
 #if (defined(EFR32MG24) && defined(WF200_WIFI))
+    // Blocking transmit for the MG24 + WF200 since UART TX is multiplexed with
+    // WF200 SPI IRQ
     pre_uart_transfer();
-#endif /* EFR32MG24 && WF200_WIFI */
-
+    UARTDRV_ForceTransmit(vcom_handle, (uint8_t *) buffer, nbOfBytes);
+    post_uart_transfer();
+#else
+    // Non Blocking Transmit
     UARTDRV_Transmit(vcom_handle, (uint8_t *) buffer, nbOfBytes, UART_tx_callback);
     ulTaskNotifyTake(pdTRUE, portMAX_DELAY);
-
-#if (defined(EFR32MG24) && defined(WF200_WIFI))
-    post_uart_transfer();
 #endif /* EFR32MG24 && WF200_WIFI */
 
 #if defined(SL_CATALOG_POWER_MANAGER_PRESENT)
diff --git a/examples/platform/silabs/efr32/wf200/host_if.cpp b/examples/platform/silabs/efr32/wf200/host_if.cpp
index 1d0f061e77d1bc..c48c5754640de4 100644
--- a/examples/platform/silabs/efr32/wf200/host_if.cpp
+++ b/examples/platform/silabs/efr32/wf200/host_if.cpp
@@ -602,7 +602,7 @@ static void wfx_events_task(void * p_arg)
             retryJoin     = 0;
             retryInterval = WLAN_MIN_RETRY_TIMER_MS;
             wfx_lwip_set_sta_link_up();
-#ifdef SLEEP_ENABLED
+#if CHIP_DEVICE_CONFIG_ENABLE_SED
             if (!(wfx_get_wifi_state() & SL_WFX_AP_INTERFACE_UP))
             {
                 // Enable the power save
@@ -610,7 +610,7 @@ static void wfx_events_task(void * p_arg)
                 sl_wfx_set_power_mode(WFM_PM_MODE_DTIM, WFM_PM_POLL_FAST_PS, BEACON_1);
                 sl_wfx_enable_device_power_save();
             }
-#endif // SLEEP_ENABLED
+#endif /* CHIP_DEVICE_CONFIG_ENABLE_SED */
         }
 
         if (flags & SL_WFX_DISCONNECT)