diff --git a/project/ble_peripheral/ble_app_bladder_patch/main.c b/project/ble_peripheral/ble_app_bladder_patch/main.c
index 1956859..7fbcb21 100644
--- a/project/ble_peripheral/ble_app_bladder_patch/main.c
+++ b/project/ble_peripheral/ble_app_bladder_patch/main.c
@@ -479,6 +479,10 @@ static void ble_dfu_evt_handler(ble_dfu_buttonless_evt_type_t event)
     {
         case BLE_DFU_EVT_BOOTLOADER_ENTER_PREPARE:
             DBG_PRINTF("[DFU] Prepare\r\n");
+            maa_async_abort();
+            dr_piezo_power_off();
+            battery_timer_stop();
+            main_timer_stop();
             break;
         case BLE_DFU_EVT_BOOTLOADER_ENTER:
             DBG_PRINTF("[DFU] Enter\r\n");