Chosen Solution
Why half of the screen is not working properly and how to fix it?
my guess is that it is either a screen rotation glitch which should be fixed by turning the phone off and back on, or the screen is dieing and you should see if the phone is under any kind of warranty. if not then look for a replacement screen but i got a feeling that it is just a screen rotation glitch
If half of the screen is “not working” or showing “white noise”. It’s about the display cable connecting to the mainboard. Maybe only the plug went loose, try wrench / press the phone where that connector is located: it’s on the right side about between the volume and power power button. With a little luck you can fix it for a while without opening.
