my brand new xperia Xperia Z3 stopped working after software update, now when you switch it on the backlight is on but no image displays...it was my first time switching it on to update the very same day ,i thought it was software based so i flashed it using xperia flash tool as companion had failed multiple times to software repair but nothing has worked now..the phone has been in my drawer for 2 months now can anyone assist...oooh and it still gives feed back the camera flashes and all