diff --git a/STM32F103_App1/HardWare/RELAY/relay.c b/STM32F103_App1/HardWare/RELAY/relay.c
index cc9b1f2..7ddd7cc 100644
--- a/STM32F103_App1/HardWare/RELAY/relay.c
+++ b/STM32F103_App1/HardWare/RELAY/relay.c
@@ -34,8 +34,8 @@ void relayCmdProcess(void)
         /* 等待继电器反馈电路稳定 */
         if (HAL_GetTick() - relay_cmd_tick < 100) return;
         fb_after = relayReadFb(ch);
-        /* 测试: 仅第 2 路反馈失败应答改中文(直接写中文=GBK 字节, 其余路保持英文; 平台乱码则回退 UTF-8 转义) */
-        const char *failmsg = (ch == 2) ? "负载断开或继电器损坏" : "Load unpowered / relay failure !";
+        /* 测试: 仅第 2 路反馈失败应答改中文(UTF-8 字节转义; 直接写中文=GBK 平台会乱码), 其余路保持英文 */
+        const char *failmsg = (ch == 2) ? "\xE8\xB4\x9F\xE8\xBD\xBD\xE6\x96\xAD\xE5\xBC\x80\xE6\x88\x96\xE7\xBB\xA7\xE7\x94\xB5\xE5\x99\xA8\xE6\x8D\x9F\xE5\x9D\x8F" : "Load unpowered / relay failure !";
         if (RELAY_FB_ENABLE) {
             if (MqttInfoStr.Relay_State[ch]) {
                 if (relay_cmd_fb_before == FB_INACTIVE && fb_after == FB_ACTIVE) {