Hi Peter, I am no expert but my suggestion would be to charge the phone and try a hard rest on the phone by holding the power button and home screen button. It may be that the phone needs a bit more charge to get up and going again. The only thing I would be concerned about is if there was a short or something broken inside, that could cause a power surge in the wrong place and the device could stop working altogether. Best of luck to you and I hope this helped somewhat!