Recently I sent my phone in for repair to fix the digitiser - when eventually fixed after having to replace damaged camera and cracked screen that was caused in the process, it worked for a few days until I tried to unsuccessfully download the latest update - 18.3.1.C.1.15 - now, when I press the power button, it vibrates and lights up to the 'sony' screen, then shuts down, and does this repeatedly, which means I have to force the phone off. I have tried holding the power button and volume button at the same time but this only switches the phone off after vibrating three times. Is the problem to do with damage done during the repair or the software in the unsuccessful update?
