Sony.yt - International Sony Forum

hi all, i own sony xperia z, which has a problem, my touchscreen are not responding after the screen locked. sometimes after some random press to volume up and down the touchscreen are back to normal again, but often i have to restart my phone to have it back again.. i have opened my backdoor, but it seems like nothings wrong with the connector. any suggestion would be greatly appreciated. 

Possible from tape is damaged 

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or lcd if it is for poor quality 

oh so it was because of broken flexible cable? it doesn't have any sound from buzzer speaker either.. thanks a lot jurij, you've saved my life..