Cannot get Maylan LCD to work with SKR 1.4 turbo

[adams79]

Description

While I was able to run the LCD display on an e3 mini board, after swapping the board I'm not able to use the Maylan lcd.
I've connected the tx/rx pin od the screen to the TFT tx/rx (tried swapping many times), I configuration I set:
#define SERIAL_PORT 0
#define SERIAL_PORT_2 -1

and of course enabled MAYLAN_LCD... tried to set different serial in code extra_maylan.cpp (from 1 to 3) but the display is not communicating with the printer

Steps to Reproduce

connect the maylan lcd display to skr 1.4 tot tx/rx

Expected behavior:

the display should works

Actual behavior:

the display doesn't work

[adams79]

I'm leaving the issue here because I know that you've written the module from communicating with the display...