diff --git a/NexConfig.h b/NexConfig.h
index aa095d31..daa68134 100644
--- a/NexConfig.h
+++ b/NexConfig.h
@@ -24,17 +24,17 @@
  * Define DEBUG_SERIAL_ENABLE to enable debug serial. 
  * Comment it to disable debug serial. 
  */
-#define DEBUG_SERIAL_ENABLE
+//#define DEBUG_SERIAL_ENABLE
 
 /**
  * Define dbSerial for the output of debug messages. 
  */
-#define dbSerial Serial
+//#define dbSerial Serial
 
 /**
  * Define nexSerial for communicate with Nextion touch panel. 
  */
-#define nexSerial Serial2
+#define nexSerial Serial
 
 
 #ifdef DEBUG_SERIAL_ENABLE