diff --git a/main.c b/main.c
index 9509712..20330f7 100644
--- a/main.c
+++ b/main.c
@@ -157,7 +157,7 @@ int fd;
 int UPCASE=0;
 int count_value=0;
 int getPayloadTime=100*1000;//usecond
-char softwareVersion[16]="2.1.28";
+char softwareVersion[16]="2.1.30";
 //char stationsn[16]="d126ei4lj4cc00";//TJ250995217957
 //char productid[8]="10045";
 //char appSecret[64]="s3izIliw0CF48Pcsi16rjOmoFRf5WEt8";
@@ -165,6 +165,7 @@ char stationsn[32]="90A9F73002CD";
 char productid[16]="WcLightStrip";
 char appKey[32]="fdhQmhqhvbL1cf1K9mUqt";
 char appSecret[64]="RxU8NZjfZaxsKg2B3Dr6sx";
+char subid[64]="EKmmjqyLRgghANEiQAA5LZ";  // 默认值，可从文件覆盖
 char hostDomain[64]="auk-iot.test1.zservey.com";
 int mqtt_port=1883;
 //char hostDomain[64]="127.0.0.1";
@@ -275,7 +276,7 @@ void report_lightbar_login(uint16_t tagCodeHead, uint32_t tagCode) {
              subDeviceKey, subDeviceKey, "WcSubLightStrip", MQTT_ALGORITHM, timestamp_str);
     
     // 使用HMAC-SHA1计算password
-    hmacsha1_hex("EKmmjqyLRgghANEiQAA5LZ", stringToSign, password, sizeof(password));
+    hmacsha1_hex(subid, stringToSign, password, sizeof(password));
     
     // 构建topic
     snprintf(topic, sizeof(topic), "/auk/iot/things/v1/sub/device/up/login/WcSubLightStrip/%s/%ld",
@@ -286,8 +287,8 @@ void report_lightbar_login(uint16_t tagCodeHead, uint32_t tagCode) {
              "{\"password\":\"%s\",\"timestamp\":%ld,\"signingAlgorithm\":\"%s\"}",
              password, timestamp, MQTT_ALGORITHM);
     
-    //LOG_I("Lightbar login report - topic: %s\n", topic);
-    //LOG_I("Lightbar login report - payload: %s\n", payload);
+    LOG_I("Lightbar login report - topic: %s\n", topic);
+    LOG_I("Lightbar login report - payload: %s\n", payload);
     
     // 发送MQTT消息
     mqtt_utils_publish(&mqtt_config, topic, 0, payload, strlen(payload));
@@ -636,7 +637,7 @@ void report_lightbar_logout(uint16_t tagCodeHead, uint32_t tagCode) {
              subDeviceKey, subDeviceKey, "WcSubLightStrip", MQTT_ALGORITHM, timestamp_str);
     
     // 使用HMAC-SHA1计算password
-    hmacsha1_hex("EKmmjqyLRgghANEiQAA5LZ", stringToSign, password, sizeof(password));
+    hmacsha1_hex(subid, stringToSign, password, sizeof(password));
     
     // 构建topic (logout)
     snprintf(topic, sizeof(topic), "/auk/iot/things/v1/sub/device/up/logout/WcSubLightStrip/%s/%ld",
@@ -2380,10 +2381,6 @@ void *thread_uart_recv_data(void *arg){
     while(1){
        int ret = uart_data_receive_data_back(&uartRecvData,&parmAck,&tagCodeHead,&tagCode,&tagSignal,&totalLen,&tagFeature,
                                    &count,&batteryV,&version,&ledCtrl,&signCode,&reserve,&lableParm);
-       if(ret < 0) {
-           usleep(100000);  // 失败时延迟100ms
-           continue;
-       }
        
        // 只在有效数据时才打印（tag不为0）
        if(tagCode != 0) {
@@ -2418,15 +2415,11 @@ void *thread_uart_recv_back(void *arg){
        //LOG_I("Before uart_data_receive_data_back call\n");
        int ret = uart_data_receive_data_back(&uartRecvBack,&parmAck,&tagCodeHead,&tagCode,&tagSignal,&totalLen,&tagFeature,
                                    &count,&batteryV,&version,&ledCtrl,&signCode,&reserve,&lableParm);
-       if(ret < 0) {
-           //LOG_I("uart_data_receive_data_back failed with ret=%d, sleeping 100ms\n", ret);
-           usleep(100000);  // 失败时延迟100ms
-           continue;
-       }
+
        //LOG_I("After uart_data_receive_data_back call, ret: %d\n", parmAck);
        
        // 只在有效数据且不是心跳时才打印
-       if(tagCode != 0 && tagFeature != 0xFF) {
+       if(tagCode != 0) {
            LOG_I("recv_back:%04x,%04x,tag:%08x,%02x,%02x,%02x,%02x,battery:%02x,%04x,%02x,%04x,reserve:%04x,%08x\n",
                  parmAck,tagCodeHead,tagCode,tagSignal,totalLen,tagFeature,count,batteryV,version,ledCtrl,signCode,reserve,lableParm);
        }
@@ -3529,6 +3522,19 @@ int main(int argc, char *argv[])
         LOG_I("use default productid:%s\n",productid);
     }
 
+    // 读取subid配置
+    readresult=file_to_buffer("/root/subid",&len);
+    if(readresult!=NULL){
+        trim_whitespace(readresult);  // 先清理空白字符
+        memset(subid, 0, sizeof(subid));
+        strncpy(subid, readresult, sizeof(subid)-1);
+        free(readresult);
+        readresult = NULL;
+        LOG_I("saved subid:%s\n", subid);
+    } else {
+        LOG_I("subid file not found, using default:%s\n", subid);
+    }
+
     // 读取appSecret配置
     readresult=file_to_buffer("appSecret",&len);
     if(readresult!=NULL){