Back button not working while on call

[Nikhil_Dere]

Hi All,

The back button of my Xperia Z becomes non functional while i am on a call. The home button works though. Also on starting an app, lets say Whats App, i am not able to select my chat while on call. So the selection also becomes non functional. I have no problems whatsoever using these functionalities when i am not on call. I am using the latest firmware(10.3.1.A.0.244) provided by Sony for Xperia Z.

Has anyone else faced an issue like this?
Is there a solution already present?

[gwhispererz]

Hi, suggest repairing phone software with PC Companion.

http://www.sonymobile.com/gb/tools/pc-companion/

Be aware that this process will erase phone data completely, remember to backup.

[Nikhil_Dere]

Thanks. I've already used it, but it didn't solve my problem. I've also tried factory reset.

[gwhispererz]

In that case, send phone to your local service centre to have it checked.

[Nikhil_Dere]

I had a problem of dead pixels with my camera and so i had given it to the service centre. They replaced my phone with a new phone. The issue is present in this phone as well. Can you check whether your phone has this issue or no?

[gwhispererz]

It would be better for you to get the opinion from the service centre.

[Nikhil_Dere]

I suspect this might be happening because of some app running in the background.

[gwhispererz]

Quite unlikely since you mentioned that problem still exists after software repair and factory reset.

[shihstouch]

Try to reboot in safe mode, and check if problem persist...

If not find out the third party app and uninstall it.

To boot Safe Mode Press power button > Press and hold Power Off you will get a pop up msg asking to boot in safe mode.

Re start your device to exit safe mode...

[Suresh_Kumar]

Hi,

I am using Xperia SP. It is a brand new phone hardly one month. Iam also experiencing the same problem while in call. I cant select some options while in call. Have you resolved this problem.