Hi, I've got my Sony Xperia xz premium, which has pretty heavy cosmetic damage on the back of the phone. These are the things that currently don't work on my phone : volume down button, front camera, rear camera, torch/flashlight, also when calling someone the screen goes dark and stays like that until the call is ended, perhaps problem with the sensor. I really like this phone and I don't want to just throw it away, so therefore I'm looking for someone who could fix, the repair shops charge too much money.