Black screen

[Elisheva74]

Hello there, 

Can someone please,  please help me outhere. 

My Xperia C4 unit is going black right after I am making calls, and also from time to time when it's rings I can't even see the number, because it's still having black screen. I try calling this *#*...options.. But it would tell me the message "wrong mmi" or so.

What to do about black screen during calls out or in? 

Thanks 

[Qatrium]

@Elisheva74

Ok, now try rebooting in safe mode and check if the problem persists.

[Elisheva74]

Yes, I restarted it.

But still same thing happening. ;(

[Elisheva74]

It's even goes black when I dial to check the Voice Messages...and I can't press no buttons after that, because I can't see nothing,,, cause of this black screen ;(

[Qatrium]

@Elisheva74

I'm out of ideas, one last thing we can try is performing a software repair using Xperia Companion. This will do a clean installation of the latest firmware and will also wipe your internal memory. Don't forget to backup using Xperia Companion, but preferably without adding apps or settings to the backup.

Follow the steps given in blue links, and keep us updated.