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scalkie

Okay, I have the X Performance (Taiwanese Dual model) in the US. I noticed there are two touchscreen issues... the upper part of my screen doesn't register at times (tapping widgets, swiping away notifications). Not all the time, just randomly. The other problem is when I'm gesture typing (Swiftkey or Google Keyboard) sometimes the gesture trail will cut off mid-trail causing errors while typing. I find if i turn off the screen and on again it works well. I already tried a factory reset and both issues persist.

MarlonUk1

does it happen while you are in safe mode?

try perform a software repair using Xperia Companion

scalkie

I have Googled this and haven't found anything that helps. I have performed a software repair and the issues persist

scalkie

And also just tried it in safe mode... still does it

YoGem

Hi there, can we try something? Cool! Let's go.

Open the dialer and dial this: *#*#service#*#* that is *#*#7378423#*#* in numbers, then press service tests and then touchscreen. Try to draw in the areas where usually the touchscreen don't work.

Then, next step.. Do you have by chance some sort of apps that control brightness? Like a night mode app!? Those kind of apps can disrupt regular touchscreen operation.

Another question, when this happens.. Is the screen hot? Does it happen a lot after or during usage in direct sun bright light?

scalkie

I've done the first suggestion, everything registered fine. And I do not have a brightness control app. And this happens at any random time, hot or cool... and when the second problem occurs with the broken gesture typing, I turn the screen off then on again and the gesture typing works well again

scalkie

Actually I tried the first suggestion again, and I noticed that the lines don't floor as smoothly as they do on the bottom of the screen, broken lines

YoGem

Ok so, it may be hardware, it may be software. But at this point after a software repair I think it's the digitizer gone bad. Last test before thinking about sending the device in Taiwan... Can you try the phone without Sim and SD card? It may be, also if just remotely, an issue with a Sim card or SD card. Both may have different problems but eventually both may provoke issues software side...

scalkie

Just tried without the sim and sd card, it persists. I might have to take it in... would there be a problem that it's the Taiwanese model and I'm in California?