I had this problem in the past, where the screen is just WHITE, “lit” doesn’t respond to touch, tried resetting “unplugin, plug back in” nothing, once was told by a tech to open it up, disconnect the LCD panel, and reinstall, and pwoer on, did work, now it’s happening again!, could it be that the software “firmware” got corrupted, due to the fact that I have had power outages in the past? can someone send me the disk image, so I can re-flash it? maybe they need to patch something for the lcd driver? can’t even see it connecting to my WiFi with Fing!
Please contact email@example.com and they can walk you through diagnostics.