keyboard issue: touchscreen or software?

[Paolo-son]

Hi there,
sometimes i just observed that qwerty keyboard is not responding correctly to the pressure of the fingers on the screen, more specific the part not working is on the down-right, the bottons "m", "n" and "back" to clear; for example when i press "back" button to clear "space" or simbol "point" is added. This is occupino sometimes and by switching offerte/on the phone the issue is fine, then sometimes appears again. I can't understant if it's a touchscreen problem or software issue, because most of the time when pressing on that part looks ok. Is someone have any hint or suggestioni to check?
Thanks and br /xpsonpao

[Paolo-son]

Hi, some update; just noticed the problem not only with keyboard, sometimes with normal operations the back button doesn 't respond, also some button in the middle of the screen was not responding using some applications; i'm reading the post related to touchscreen problem and tested the touchscreen with diagnostic applications, eversive is ok. I think actually that is software issue button it's hard to check.
Best regards/xpsonpao

[Alexander1]

Hi and welcome to the community! Since you're new please be sure that you have checked out our Discussion guidelines.

That sounds quite odd. Do you have a 3rd party screen protector on the display?

I would suggest that you try to boot your phone into safe mode to see if the problem may be related to any 3rd party app that you have installed in your phone:

http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008

If the behavior persists in safe mode I suggest that you try to repair the phone software using PC Companion: 

http://www.sonymobile.com/update

In PC Companion, press start on Support Zone > Start on Update the phone/tablet software > Press the blue link that says "Repair phone/tablet".

Before repairing the software in your device you may want to backup your information first. Check out this topic for more information on how to:
http://talk.sonymobile.com/t5/FAQ/Backup-amp-Transfer/m-p/407253#U407253

[Paolo-son]

Hi, thanks for answer. Yes I have screen protector, like I had it also on my previous phone xperia ray ( neve got any issue). I'll try your suggestions. I've sera also discussione already esistono on touchscreen issue and I ' m also partecipating to that one. Attendo momento, workaround found is simply to put the phone in stanby by pressing on/off button and just pressing again the same button to reactivate the phone;usually the issue disappears...that 's why I think to sw issue. The phone is updated with latest release.
/Xpsonpao

[Paolo-son]

Hi, sorry for some typing mistake. I saw discussion in this forum about touchscreen problem; i also found a simple workaround described previously hoping that it will continue to work.
/Xpsonpao

[Paolo-son]

Still i have not yet done action proposed due to missing time. Anyway i observed during this period that the issue popped up easy when applications sony what's new start running. Another way to get the issue is connection to this forum, it is slow and take time and keyboard problem can appear. Now i updated whats new applications and phone works better and keyboard issue occors less frequent, very rare. Instead still problem with connection to this forum, in this moment i' m writing and got the issue keyboard. I' m strongly sure that issue is software not optimized.
Regards/xpsonpao

[Paolo-son]

Update, i removed the vibration when pressing any button of the keyboard, and phone is quicker in answering to input done, and at moment no keyboard issue observed