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2018-12-11 03:24 PM
The button isn't working most of the time, but when It start to working again,It work Like a charm... So It can't be an HW problem.
2018-12-11 03:44 PM
My answer was specific to @sitfh_sitfh, not your case, in your case if you think it is a software problem I would advise a sofware repair with Xperia Companion (try first restart the phone in safe mode just to discard any third party app influence) since it will install a fresh copy of the latest software.
Let me also tell you that I have Pie installed in my phone with same firmware and have no problem with volume up button.
2018-12-11 03:58 PM
I've already done a sw repair with companion and nothing change.
I tryed to use volume up At the beginning without anything installed and nothing change
2018-12-11 04:10 PM
That is really odd, I would suspect really an hardware faillure, maybe some bad connection.
Anyway, if your phone is under warranty and you can't solve the problem, even being a software problem, you should contact local Sony Support Team to get your device looked at.
2018-12-11 04:13 PM - edited 2018-12-11 04:14 PM
Yeah but you can understand that Not anyone have another Phone to use in waiting for the repair
In my country (italy) i have to wait 2 or more weeks for having back my Phone from repair
In this case i Will wait for new sony xz4 and then send this Phone on repair.
But i hope you can understand my anger when i had a Perfect Phone,, and after an update, i have this problem.
2018-12-11 04:19 PM
I understand perfectly your problem. Maybe as you say wait for a new software update and hope that it can solve your problem, it's also very strange but I have seen in this forum people with similar problems that get miraculously solved with new updates.
2018-12-13 09:47 AM
My xperia is doing exactly the same thing. It is also restarting itself about 5-6 times a day... . Really annoying for a so called flagship phone
2018-12-13 11:03 AM
I try to revert to oreo for see if the old sw could fix the problem.
Now even with oreo The button doesn't work At all. Before The update It was working Like a charm.
I don't really know what they did with The sw
2019-01-11 08:23 AM
Hi this is my problem too. I tried factory reset. The problem is still there. My device is one year old