Dear admin and contemporaries on sony
kindly advise, I attempted updating my experia z via the sony companion, when it was almost done and my phone had automatically gone off, the companion stopped working (not responding). That left my phone dead and unable to restart. When I try to switch it on, it displays SONY then go off again it is fully charged though. I followed the instructions of force start with a volume key and power button together but it didnt help. Kindly assist
