12S Ultra - Sudden black screen / phone still works


jarivd

Members
16 Aug 2022
3
15
Hi guys,
I'm in a bit of a predicament.
My 12S Ultra's display suddenly stopped working, but I could still feel the haptic feedback of my touchscreen so I knew it was still on.
I slapped my phone again my hand a few times (percussive maintenance) and the screen turned back on.
So I figured a loose connection or something on my screen connector.
I plugged my phone into my pc and used scrcpy to mirror my screen to my pc over adb and such and it works perfectly. So I got my phone scheduled for a screen replacement and waited. But they've tried 2 screens and every time it would just show the initial mi logo and then nothing no more.
So I figure it's something with the OS?
Let me know if you guys have any recommendations as to what to try next?
I thought maybe reinstalling the OS via the fastboot OS update thing? Via recovery probably won't work as i can't see the TWRP screen either...
Thanks!