Umi super touchscreen problem

borntowin7

\n\nHi everyone, I have a big trouble about my UMI.
Yesterday i had made a downgrade by android 7 to 6 with flashtool.
after 4-5 hours the smartphone start to being crazy, the touch doesnt work anymore and there are many ghost touches and things like that.
So i decide to power off it all night and today the situation seems solved, except that the left size of touchscreen is dead!! i've tried to flash many roms and firmwares but the problem persists. There is someone with same trouble or someone can help me? thank you

leossi

I don't update mine but the ghost touches are a constant since september... at this moment the phone is almost useless, I use an app that lock the touchscreen and use an bluetooth mouse and keyboard to use some chat or video apps

borntowin7

This make me think that the problem is display..because if i rotate the screen i can use only the down side, while the upper part is useless. I could replace it but if the problem is software?