Hi i`ve problems with my iPhone 7. It was working without problems until last week when the proximity sensor dead. i`ve already try to restore, restart but it continues not working.When i put the iPhone in DFU mode and the restart it, It works and seems to be solved , so i used it for one day and then it stop working . I think that the power charger is the problem because immediately i unplug the telephone from the charger , the sensor stop working . I need help with this thanks.