diff --git a/network/serial_network/HAL/NATIVE/serial_network_hal.c b/network/serial_network/HAL/NATIVE/serial_network_hal.c
index 52964d79f..6fe1092ff 100644
--- a/network/serial_network/HAL/NATIVE/serial_network_hal.c
+++ b/network/serial_network/HAL/NATIVE/serial_network_hal.c
@@ -67,15 +67,6 @@ char *stripStr(char *string)
 }
 
 #ifdef _WIN32
-void PrintCommState(DCB dcb)
-{
-    //  Print some of the DCB structure values
-    _tprintf(TEXT("\nBaudRate = %d, ByteSize = %d, Parity = %d, StopBits = %d\n"),
-             dcb.BaudRate,
-             dcb.ByteSize,
-             dcb.Parity,
-             dcb.StopBits);
-}
 void set_serial_raw_mode()
 {
     DCB dcb;
@@ -88,20 +79,12 @@ void set_serial_raw_mode()
         LUOS_ASSERT(0);
         return;
     }
-    PrintCommState(dcb);
 
-    dcb.BaudRate
-        = CBR_115200; // SERIAL_NETWORK_BAUDRATE;
+    dcb.BaudRate = SERIAL_NETWORK_BAUDRATE;
     dcb.ByteSize = 8;
     dcb.StopBits = ONESTOPBIT;
     dcb.Parity   = NOPARITY;
     dcb.fBinary  = TRUE;
-    // dcb.fRtsControl  = RTS_CONTROL_DISABLE;
-    // dcb.fOutxCtsFlow = FALSE;
-    // dcb.fDtrControl  = DTR_CONTROL_DISABLE;
-    // dcb.fOutxDsrFlow = FALSE;
-    // dcb.fOutX        = FALSE;
-    // dcb.fInX         = FALSE;
 
     if (!SetCommState(hSerial, &dcb))
     {
@@ -109,18 +92,8 @@ void set_serial_raw_mode()
         LUOS_ASSERT(0);
         return;
     }
-    PrintCommState(dcb);
-
-    if (!GetCommState(hSerial, &dcb))
-    {
-        printf("GetCommState failed with error %d.\n", GetLastError());
-        LUOS_ASSERT(0);
-        return;
-    }
-    PrintCommState(dcb);
 
-    COMMTIMEOUTS timeouts
-        = {0};
+    COMMTIMEOUTS timeouts                = {0};
     timeouts.ReadIntervalTimeout         = MAXDWORD;
     timeouts.ReadTotalTimeoutConstant    = 0;
     timeouts.ReadTotalTimeoutMultiplier  = 0;
@@ -134,14 +107,6 @@ void set_serial_raw_mode()
         return;
     }
 
-    if (!GetCommState(hSerial, &dcb))
-    {
-        printf("GetCommState failed with error %d.\n", GetLastError());
-        LUOS_ASSERT(0);
-        return;
-    }
-    PrintCommState(dcb);
-
     // Setup a 4k buffer
     if (!SetupComm(hSerial, 4096, 4096))
     {
@@ -383,15 +348,6 @@ void SerialHAL_Loop(void)
 void SerialHAL_Send(uint8_t *data, uint16_t size)
 {
 #ifdef _WIN32
-    DWORD fileType = GetFileType(hSerial);
-    if (fileType == FILE_TYPE_UNKNOWN && GetLastError() == NO_ERROR)
-    {
-        printf("hSerial is an invalid handle\n");
-    }
-    else
-    {
-        printf("hSerial is a valid handle\n");
-    }
     DWORD bytesWritten;
     if (!WriteFile(hSerial, data, size, &bytesWritten, NULL))
     {