The touch screen of phone (Samsung Ace 3, GT-S7275T) suddenly stopped responding. I have tried factory reset and flashing the stock rom (4.2.2.). The first did not help and the latter seems impossible to do, since I cannot check USB debugging without a functioning screen. I would like to have opinions on whether this is more likely to be a problem with the hardware (digitizer)? I am, of course. also grateful for any other suggestions.