diff --git a/V1.5/STM32F103_App1/HardWare/CAR/air780e.c b/V1.5/STM32F103_App1/HardWare/CAR/air780e.c
index 7b3d37b..48ca7b7 100644
--- a/V1.5/STM32F103_App1/HardWare/CAR/air780e.c
+++ b/V1.5/STM32F103_App1/HardWare/CAR/air780e.c
@@ -475,10 +475,13 @@ int air780e_mqtt_report(const char *header, const char *ota_id, int val) {
     if (!header || !ota_id || !ota_id[0]) return -1;
     static char cmd[300];
     if (strstr(header, "progress")) {
-        /* 进度上报：允许丢包，发了就走 */
+        /* 进度上报：等 OK 确认送达（失败自动重试 1 次），让平台"升级中"可靠置位。
+         * 代价是每 10% 最多多花 ~3s，换来进度可见 */
         sprintf(cmd, "AT+MPUB=\"/iot/data/up/%s\",0,0,\"{\\22header\\22:\\22%s\\22,\\22body\\22:{\\22id\\22:\\22%.16s\\22,\\22progress\\22:%d}}\"",
             MqttInfoStr.ClientID, header, ota_id, val);
-        CAT1_printf("%s", cmd);
+        if (catSendCmd(cmd, "OK", 2, 15) != 0) {
+            log_warn("> OTA 进度上报无应答: %d%%", val);
+        }
         return 0;
     } else {
         /* 结果上报：平台据此判定升级完成，必须可靠送达——等 OK 并重试 */
diff --git a/V1.5/鐗堟湰璇存槑.md b/V1.5/鐗堟湰璇存槑.md
index b12796b..a8adb9d 100644
--- a/V1.5/鐗堟湰璇存槑.md
+++ b/V1.5/鐗堟湰璇存槑.md
@@ -162,3 +162,5 @@
 - OTA 闂幆锛堝吋瀹圭増锛夛細鍥為�� W25Q64 缁撴瀯鏀瑰姩锛圔L/APP 鍏变韩缁撴瀯涓嶈兘鍔紝鐜板満鏃犳硶鍒� BL锛夛紝
   骞冲彴浠诲姟 id 鏀瑰瓨 APP 绉佹湁 EEPROM(175~194)锛屾柊鍥轰欢棣栧惎纭鏃跺湪鍙潬杩炴帴涓婅ˉ鍙�
   result.post(success=1, 浠诲姟id) + confirm.post锛岄�佽揪鍚庢竻鍥� 0xFF
+- OTA 杩涘害涓婃姤鏀瑰彲闈犲彂閫侊細progress.post 绛� OK 纭锛堝け璐ヨ嚜鍔ㄩ噸璇� 1 娆★紝姣� 10% 鏈�澶氬鑺� ~3s锛夛紝
+  骞冲彴"鍗囩骇涓�"鏍囧織鍙疆浣嶏紱鑻ユ棤搴旂瓟鎵撳嵃 WARN