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Hi. Power button won't work in any way, but volume up button pretend to be power button sometimes (power on and pop up menu), also when I power off PC tablet it's power on automatically just like power button is on. Also vibration function stopped work, so can red reset button help in this case?
Hi @Lawgun, sorry to hear that.
From your description it sounds as if this is hardware related. You can however try to perform a software repair using Xperia Companion first.
If this doesn't help you should get your device examined further at an authorised service center though. You can contact your Local support team for more information on how to proceed with this if need be.