Unresponsive Tablet

[erich]

Every few days my Xperia Z tablet has several unresponsive periods either it won't switch on or it will switch off midflow,sometimes it turns on after a few minutes without any input. Then works brilliantly for 2+ days. It can be more than a week. Could it be an app or hardware problem. I also use an16G sd: card

[Rickard]

Hard to say what the problem is. I would recommend that you first try shutting it down completely by holding on/off and vol+ at the same time for 10 seconds.

If that doesn't help i recommend that you try making a repair of the software using a computer and the USB-cable. See this page for software: http://www.sonymobile.com/global-en/software/. Please note that when you make a repair of the software it will reset your tablet.