Hello!
I have this display shield - https://www.aliexpress.com/item/1005005694910573.html
And I am using Arduino uno r4 Wi-Fi.
The problem is the white screen, I have run a few examples from MCUFRIEND and here are the tests and results:
LCD_ID_readnew
diagnose_TFT_support
TouchScreen_Calibr_native
It may or may not help, but a while back I did some patching in the MCUFRIEND_kbv library to get it working on the R4 Minima and Wifi. I don't know if it'll help in your case (the library seems to have read the ID okay) but it's easy enough to try. Just follow the instructions in the link below:
Thank You! Everything works now. Starting my project....NOW!
Happy New Year!
