diff --git a/Marlin/src/core/serial_hook.h b/Marlin/src/core/serial_hook.h
index 6558765cf6..3431ff3a6c 100644
--- a/Marlin/src/core/serial_hook.h
+++ b/Marlin/src/core/serial_hook.h
@@ -22,10 +22,6 @@
 #pragma once
 
 #include "serial_base.h"
-
-//#if ENABLED(MKS_WIFI)
-//#include "../module/mks_wifi/mks_wifi.h"
-//#endif
 void mks_wifi_out_add(uint8_t *data, uint32_t size);
 
 // A mask containing a bitmap of the serial port to act upon
@@ -216,10 +212,7 @@ struct MultiSerial : public SerialBase< MultiSerial<Serial0T, Serial1T, offset,
 
   NO_INLINE void write(uint8_t c) {
     if (portMask.enabled(FirstOutput))   serial0.write(c);
-    if (portMask.enabled(SecondOutput))  {
-      mks_wifi_out_add((uint8_t *)&c,1);
-      //serial1.write(c);
-      };
+    if (portMask.enabled(SecondOutput))  mks_wifi_out_add((uint8_t *)&c,1);
   }
   NO_INLINE void msgDone() {
     if (portMask.enabled(FirstOutput))   serial0.msgDone();
diff --git a/Marlin/src/module/mks_wifi/mks_wifi.cpp b/Marlin/src/module/mks_wifi/mks_wifi.cpp
index 281da6483d..d29a5da471 100644
--- a/Marlin/src/module/mks_wifi/mks_wifi.cpp
+++ b/Marlin/src/module/mks_wifi/mks_wifi.cpp
@@ -1,4 +1,6 @@
 #include "mks_wifi.h"
+
+
 #ifdef MKS_WIFI
 
 #include "../../lcd/marlinui.h"
@@ -372,5 +374,12 @@ void mks_wifi_send(uint8_t *packet, uint16_t size){
 		MYSERIAL2.write(packet[i]);
 	}
 }
+#else
+void mks_wifi_out_add(uint8_t *data, uint32_t size){
+	while(size--){
+		MYSERIAL2.write(*data++);
+	}
+	return;
+};
 
 #endif
\ No newline at end of file
diff --git a/Marlin/src/module/mks_wifi/mks_wifi.h b/Marlin/src/module/mks_wifi/mks_wifi.h
index 0e508a67ce..ee9cc2ad00 100644
--- a/Marlin/src/module/mks_wifi/mks_wifi.h
+++ b/Marlin/src/module/mks_wifi/mks_wifi.h
@@ -1,21 +1,19 @@
 #ifndef MKS_WIFI_H
 #define MKS_WIFI_H
-
 #include "../../MarlinCore.h"
 #include "../../inc/MarlinConfig.h"
 #include "../../libs/Segger/log.h"
 #include "mks_wifi_settings.h"
 
+
+void mks_wifi_out_add(uint8_t *data, uint32_t size);
+
 #ifdef MKS_WIFI
 
 #define MKS_OUT_BUFF_SIZE (ESP_PACKET_DATA_MAX_SIZE)
 #define MKS_IN_BUFF_SIZE (ESP_PACKET_DATA_MAX_SIZE + 30)
 
 #define MKS_TOTAL_PACKET_SIZE (ESP_PACKET_DATA_MAX_SIZE+10)
-//#define SDIO_TEST_AT_STARTUP		
-//#define LIST_FILES_AT_STARTUP		(uint8_t)1
-
-//#define MKS_WIFI_SERIAL_NUM        (uint8_t)1
 #define WIFI_MODE_STA				(uint8_t)2
 #define WIFI_MODE_AP				(uint8_t)1
 
@@ -51,8 +49,6 @@ void mks_wifi_set_param(void);
 uint8_t mks_wifi_input(uint8_t data);
 void mks_wifi_parse_packet(ESP_PROTOC_FRAME *packet);
 
-void mks_wifi_out_add(uint8_t *data, uint32_t size);
-
 uint16_t mks_wifi_build_packet(uint8_t *packet, ESP_PROTOC_FRAME *esp_frame);
 
 uint8_t mks_wifi_check_packet(uint8_t *in_data);