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Buttons not functionings

One time poster
Message 1 of 1
Message 1 of 1

Buttons not functionings

Hi, I have been using my xperia Z3+ dual for 3 years.  While am using, it turns off twice then when i open it again my navigation bar stopped responding. Home button and recent apps button are doesn't work when I tap on it but my back button and apps button will do. I restarted the phone a few times but that didn't help.


Hope someone here can help me.