On screen buttons don't work

[Lamer]

I recently purchase an Xperia Z3 compact. After few minutes on usage, suddenly the On screnn buttons becom unresponsive (i.e.home, back and tecent app butto). Has any anyone experienced this problem, is there any setting mistake. I made a factory reset, an also hard close restart but nothing worked.

My last try is the upgrade to lollypop, but I'm not sure if this will fix it either

Appreciate any help

Thanks
Ermo

[_alexdon_]

Do you have any 3rd party launchers or antivirus?

[Lamer]

It has the avg antivirus pre-installed. I haven't installed any other application and my interection with the phone has been very minimal. I haven't inserted the sim card yet.

[Uliwooly]

@Lamer

uninstall avg and also boot on safe mode and see if you experience the same issue.

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

[Lamer]

I did as you recommended Uliwooly, but the situation is the same. Anyway thanks for your help.

[Uliwooly]

@Lamer

repair your phone with PCC

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355

[Uliwooly · Accepted solution]

@Lamer

If PCC doesn't work then contact your local Xperia care

http://support.sonymobile.com/global-en/contactUs/

[Lamer]

Thanks all, for your help, but nothing has worked. 

I returned it back. 

[Uliwooly]

@Lamer

Anytime

[GabrielKoike]

This has happened to me as well... Seems to be a software related issue.

The buttons work if I tilt right such that the buttons show on the right.

I have checked the touchscreen and it's working just fine.

This has happened with at least some 2 weeks using lollypop. Nothing in particular has been installed before the buttons stopped working.

Factory reset AND repair through the PCC have not worked.

Anyone has any tips? I'm sure it is software related