Next to the USB terminal at the bottom is the reset button. You need a pin or very thin object to poke in the tiny hole. This may erase everything on it but is worth a try. There is a 50% chance that this will fix it. If not then it needs to be sent back to the manufacturer for diagnosis.
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Next to the USB terminal at the bottom is the reset button. You need a pin or very thin object to poke in the tiny hole. This may erase everything on it but is worth a try. There is a 50% chance that this will fix it. If not then it needs to be sent back to the manufacturer for diagnosis.