Non Responsive Display

[miltonsaha9200]

Hello, i'm having a very weird problem
I was on OxygenOS Stable rom, then suddenly oneday the middle horizontal half inch portion of my screen wasn't responding. I thought it was maybe a software bug, then tried several ROMS, but didn't work. Then updated to latest open beta and the problem was gone.
But before 1 week the problem started to happen again this time that previous non-responsive part as well as another half inch blow that area. I tried Stable 5.0.2 not worked this time
today i'm going to try some ROMs too, but what's the actual problem is? If it was hardware then how it was fixed previously?

HELP ME PLEASE

 

[broomer68]

I suspect a hardware problem. Flash original rom, factory-reset and, seek repair.

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[newellj79]

The digitizer is starting to go. If your not ready for a upgrade you need to order a replacement display assembly and perform surgery....

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