diff --git a/main.c b/main.c
index ac2e7ef..6a420e1 100644
--- a/main.c
+++ b/main.c
@@ -3048,11 +3048,11 @@ int main(int argc, char *argv[])
     system("echo 113 > /sys/class/gpio/export");//pin 113 yellow
     system("echo out > /sys/class/gpio/gpio113/direction");
     #endif
-    uart_open(&uartRecvData,"/dev/ttyS0");//DT
+    uart_open(&uartRecvData,"/dev/ttysWK0");//DT
     uart_init(&uartRecvData,115200,8,1,'N',0);
-    uart_open(&uartRecvBack,"/dev/ttyS1");//HT
+    uart_open(&uartRecvBack,"/dev/ttysWK1");//HT
     uart_init(&uartRecvBack,115200,8,1,'N',0);
-    uart_open(&uartSend,"/dev/ttyS5");//GT U12 ttyS0,U14 ttyS4,U21 ttysWK0 U13 ttysWK1 U15 ttysWK2 U22 ttysWK3 U20 ttyS1
+    uart_open(&uartSend,"/dev/ttysWK5");//GT U12 ttyS0,U14 ttyS4,U21 ttysWK0 U13 ttysWK1 U15 ttysWK2 U22 ttysWK3 U20 ttyS1
     uart_init(&uartSend,115200,8,1,'N',0);
 
 #if 0
@@ -3201,6 +3201,7 @@ int main(int argc, char *argv[])
     }
     #endif
 
+#if 0
     ret = pthread_create(&pt_ota,NULL,thread_ota,NULL);
     if(ret!=0){
        LOG_I("pthread_create ota fail\n");
@@ -3216,6 +3217,7 @@ int main(int argc, char *argv[])
        LOG_I("pthread_create doota success\n");
        pthread_detach(pt_doota);
     }
+#endif
 #if 1
     ret = pthread_create(&pt_readqr,NULL,thread_readqr,NULL);
     if(ret!=0){