Hi Adain, I would give them a hardreset, If this doesn't work it's an indication that the issue may be hardware related and will need a technician to check soldering, plugs etc.
Press and hold the power button for 10 seconds.
Release the button.
The battery Fuel Gauge LEDs will all blink white, then the first will blink red—this sequence will happen three times.
When the lights stop flashing, the reset is complete.