diff --git a/V1.4-Chinese/STM32F103_BootLoader/m_app/ota_boot.c b/V1.4-Chinese/STM32F103_BootLoader/m_app/ota_boot.c
index a18f06f..f0c8596 100644
--- a/V1.4-Chinese/STM32F103_BootLoader/m_app/ota_boot.c
+++ b/V1.4-Chinese/STM32F103_BootLoader/m_app/ota_boot.c
@@ -538,11 +538,16 @@ void Start_BootLoader(void)
 		}
 	}
 
-	/* 3. 回退状态：直接跳转当前 APP1 */
+	/* 3. 回退状态：跳转当前 APP1（先校验，防止 APP 被擦除后跳入空片） */
 	if (info_ok && info.update_state == W25Q64_STATE_ROLLBACK)
 	{
-		IAP_ExecuteApp(Application_1_Addr);
-		return;
+		if (Verify_Firmware(Application_1_Addr, Application_Size))
+		{
+			IAP_ExecuteApp(Application_1_Addr);
+			return;
+		}
+		log_warn("[BL] 回退状态但 APP1 无效，清除 OTA 标志");
+		W25Q64_OTA_ClearNew();
 	}
 
 	/* 4. 没有 OTA 任务：直接启动 APP1 */