xperia z won't unlock. (power button)

[ivansatria]

Hi, i have a problem with my phone pls help. I cant unlock my phone with the power button. It can lock the phone normally but for the unlocking, its not working. For now i have to unlock the phone by calling it with another phone. Is there any solution solution that might work? Thanks before.

[_alexdon_]

You might want to try power button and volume up at the same time to force the device to turn off.Turn it back on.

[_alexdon_]

You can also perform a software repair using PC Companion.The process will erase all internal memory.You might need to charge your device for about 1-2 hours before so the device has at least 60% battery.

Make sure the device is not connected to computer or laptop and turned off (sometimes you have to press power button and volume up until the device vibrates 3 times or on some devices you have to press the small button near the SIM tray or on the back of the device).

Open PC companion->support zone->phone/tablet software update->repair my phone/tablet blue highlighted.Follow the steps given,do not connect your phone until prompted to press volume down while plugging USB cable. If PC companion does not start the repair process, you might need to run it in compatibility mode with Windows 7 (in some cases XP).