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Samsung Galaxy S4 back button and options button not working(no lights)
I recently upgraded with my service provider and got an S4. However after 4 days the back button and options button no longer works, and the lights do not show, i disabled and enabled haptic feedback, turned off power saving mode and rebooted my phone via the power button and via a hard reboot.
I did not do a factory reset because if the device fails within 7 days of purchase, which it has it, it must be returned to the store where i purchased it.
Any idea as to what to do, before i send the phone back?