diff --git a/Core/Inc/yunhorn_sts_prd_conf.h b/Core/Inc/yunhorn_sts_prd_conf.h
index f0d2f6a..7988566 100644
--- a/Core/Inc/yunhorn_sts_prd_conf.h
+++ b/Core/Inc/yunhorn_sts_prd_conf.h
@@ -242,7 +242,7 @@
 
 #define MajorVer									24U
 #define MinorVer									04U
-#define SubMinorVer 								8U
+#define SubMinorVer 								16U
 #define FirmwareVersion								3U
 #define	YUNHORN_STS_MAX_NVM_CFG_SIZE				64U
 #define YUNHORN_STS_AC_CODE_SIZE					20U
diff --git a/Core/Src/gpio.c b/Core/Src/gpio.c
index f321bae..3da7956 100644
--- a/Core/Src/gpio.c
+++ b/Core/Src/gpio.c
@@ -161,6 +161,12 @@ void MX_GPIO_Init(void)
   HAL_GPIO_Init(LED1_GPIO_Port, &GPIO_InitStruct);
 #endif
 
+  GPIO_InitStruct.Pin = MEMS_POWER_Pin;
+  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
+  GPIO_InitStruct.Pull = GPIO_NOPULL;
+  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+  HAL_GPIO_Init(MEMS_POWER_GPIO_Port, &GPIO_InitStruct);
+
 #if defined(SOAP_LEVEL_SENSOR)
 /* ==============   SOAP LEVEL DETECTION ========================= */
 
diff --git a/Core/Src/main.c b/Core/Src/main.c
index ab5f232..8ebb480 100644
--- a/Core/Src/main.c
+++ b/Core/Src/main.c
@@ -115,7 +115,7 @@ int main(void)
   MX_LoRaWAN_Init();
 
   /* USER CODE BEGIN 2 */
-
+  HAL_UART_DeInit(&huart2);
 
   /* USER CODE END 2 */
 
diff --git a/Core/Src/stm32_lpm_if.c b/Core/Src/stm32_lpm_if.c
index 20e3377..4005903 100644
--- a/Core/Src/stm32_lpm_if.c
+++ b/Core/Src/stm32_lpm_if.c
@@ -97,6 +97,8 @@ void PWR_EnterStopMode(void)
   /* USER CODE BEGIN EnterStopMode_1 */
 
   /* USER CODE END EnterStopMode_1 */
+  HAL_UART_DeInit(&huart2);
+  vcom_DeInit();
   HAL_GPIO_WritePin(GPIOA,GPIO_PIN_All, GPIO_PIN_RESET);
   HAL_GPIO_WritePin(GPIOB,GPIO_PIN_All, GPIO_PIN_RESET);
 
diff --git a/Core/Src/sys_app.c b/Core/Src/sys_app.c
index fe35461..147f50c 100644
--- a/Core/Src/sys_app.c
+++ b/Core/Src/sys_app.c
@@ -124,6 +124,7 @@ void SystemApp_Init(void)
   /* Disable Stand-by mode */
   //UTIL_LPM_SetOffMode((1 << CFG_LPM_APPLI_Id), UTIL_LPM_DISABLE);
   UTIL_LPM_SetOffMode((1 << CFG_LPM_APPLI_Id), UTIL_LPM_DISABLE);
+  UTIL_LPM_SetOffMode((1 << CFG_LPM_UART_TX_Id), UTIL_LPM_ENABLE);
 
 #if defined (LOW_POWER_DISABLE) && (LOW_POWER_DISABLE == 1)
   /* Disable Stop Mode */
diff --git a/STM32CubeIDE/.cproject b/STM32CubeIDE/.cproject
index 07e71e9..08b966f 100644
--- a/STM32CubeIDE/.cproject
+++ b/STM32CubeIDE/.cproject
@@ -186,6 +186,9 @@
 								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.linker.option.directories.422845458" name="Library search path (-L)" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.linker.option.directories" useByScannerDiscovery="false" valueType="libPaths">
 									<listOptionValue builtIn="false" value="../../../../../../../Middlewares/ST/STM32_Cryptographic/lib"/>
 								</option>
+								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.linker.option.otherflags.1358066978" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.linker.option.otherflags" valueType="stringList">
+									<listOptionValue builtIn="false" value="-z noexecstack"/>
+								</option>
 								<inputType id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.linker.input.715223353" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.linker.input">
 									<additionalInput kind="additionalinputdependency" paths="$(USER_OBJS)"/>
 									<additionalInput kind="additionalinput" paths="$(LIBS)"/>
diff --git a/STM32CubeIDE/Release/makefile b/STM32CubeIDE/Release/makefile
index 08d3e48..50b851a 100644
--- a/STM32CubeIDE/Release/makefile
+++ b/STM32CubeIDE/Release/makefile
@@ -77,7 +77,7 @@ main-build: STS_RR_R125.elf secondary-outputs
 
 # Tool invocations
 STS_RR_R125.elf STS_RR_R125.map: $(OBJS) $(USER_OBJS) D:\ONEDRIVE\STM32WLV13\Projects\NUCLEO-WL55JC\Applications\LoRaWAN\STS_RR_R125\STM32CubeIDE\STM32WLE5CCUX_FLASH.ld makefile objects.list $(OPTIONAL_TOOL_DEPS)
-	arm-none-eabi-gcc -o "STS_RR_R125.elf" @"objects.list" $(USER_OBJS) $(LIBS) -mcpu=cortex-m4 -T"D:\ONEDRIVE\STM32WLV13\Projects\NUCLEO-WL55JC\Applications\LoRaWAN\STS_RR_R125\STM32CubeIDE\STM32WLE5CCUX_FLASH.ld" --specs=nosys.specs -Wl,-Map="STS_RR_R125.map" -Wl,--gc-sections -static -L../../../../../../../Middlewares/ST/STM32_Cryptographic/lib --specs=nano.specs -mfloat-abi=soft -mthumb -u _printf_float -Wl,--start-group -lc -lm -Wl,--end-group
+	arm-none-eabi-gcc -o "STS_RR_R125.elf" @"objects.list" $(USER_OBJS) $(LIBS) -mcpu=cortex-m4 -T"D:\ONEDRIVE\STM32WLV13\Projects\NUCLEO-WL55JC\Applications\LoRaWAN\STS_RR_R125\STM32CubeIDE\STM32WLE5CCUX_FLASH.ld" --specs=nosys.specs -Wl,-Map="STS_RR_R125.map" -Wl,--gc-sections -static -L../../../../../../../Middlewares/ST/STM32_Cryptographic/lib -z noexecstack --specs=nano.specs -mfloat-abi=soft -mthumb -u _printf_float -Wl,--start-group -lc -lm -Wl,--end-group
 	@echo 'Finished building target: $@'
 	@echo ' '