I have a MHS-3.5inch RPi Display and I cannot get touch ui to work or even boot I have tried maybe 12 separate times to make this work and with no luck. I have read the post here PI 4 with MHS-3.5inch RPi Display
and it ran touch ui but as soon as I did the calibration it went back to white screen and sometimes it would go back to command line with "octopi login:" flashing on the bottom. Is this an issue with my screen?
Yes, I have been through those guides
Did you ever figure this out? I just bought the same screen and I can't get it to post.