no message

api/application/helpers/function_helper.php

@@ -117,7 +117,7 @@ function lampMqttCmd($sendTopic,$backTopic,$sendData,$timeout = 5,$seq = ''){
         }
     }
     $mqtt->close();
-    $true['msg'] = substr($true['msg'], 2);
+    // $true['msg'] = substr($true['msg'], 2);
     return $true;
 }