diff --git a/nucleo-wb55-ble/Core/Inc/stm32wbxx_it.h b/nucleo-wb55-ble/Core/Inc/stm32wbxx_it.h
index e06a700..b01d95d 100644
--- a/nucleo-wb55-ble/Core/Inc/stm32wbxx_it.h
+++ b/nucleo-wb55-ble/Core/Inc/stm32wbxx_it.h
@@ -56,6 +56,7 @@ void SVC_Handler(void);
 void DebugMon_Handler(void);
 void PendSV_Handler(void);
 void SysTick_Handler(void);
+void EXTI4_IRQHandler(void);
 void USB_LP_IRQHandler(void);
 void HSEM_IRQHandler(void);
 /* USER CODE BEGIN EFP */
diff --git a/nucleo-wb55-ble/Core/Src/main.c b/nucleo-wb55-ble/Core/Src/main.c
index b1030f1..0c3bdaf 100644
--- a/nucleo-wb55-ble/Core/Src/main.c
+++ b/nucleo-wb55-ble/Core/Src/main.c
@@ -299,6 +299,10 @@ static void MX_GPIO_Init(void)
 }
 
 /* USER CODE BEGIN 4 */
+
+void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) {
+  HAL_NVIC_SystemReset();
+}
 void PeriphClock_Config(void)
 {
 	RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = { 0 };
diff --git a/nucleo-wb55-ble/Core/Src/stm32wbxx_it.c b/nucleo-wb55-ble/Core/Src/stm32wbxx_it.c
index 8c1e231..8a290fd 100644
--- a/nucleo-wb55-ble/Core/Src/stm32wbxx_it.c
+++ b/nucleo-wb55-ble/Core/Src/stm32wbxx_it.c
@@ -200,6 +200,20 @@ void SysTick_Handler(void)
 /* please refer to the startup file (startup_stm32wbxx.s).                    */
 /******************************************************************************/
 
+/**
+  * @brief This function handles EXTI line4 interrupt.
+  */
+void EXTI4_IRQHandler(void)
+{
+  /* USER CODE BEGIN EXTI4_IRQn 0 */
+
+  /* USER CODE END EXTI4_IRQn 0 */
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_4);
+  /* USER CODE BEGIN EXTI4_IRQn 1 */
+
+  /* USER CODE END EXTI4_IRQn 1 */
+}
+
 /**
   * @brief This function handles USB low priority interrupt, USB wake-up interrupt through EXTI line 28.
   */