Newb conceding defeat and in need of help ender 3

[RobertR728]

Awesome thank you for the advice on the screen. And thank you for the pinout. turns out the main board and the replacement were bad. Second replacement works and i can print from the screen.
I will post back after i try to communicate with the printer with and without the screen to see if it should have worked for me.

Thank you again
RobertR728