How do I get past the Finalizing Device Setup screen?

I turned my passport off the other day to avoid it ringing during a movie. Since I turned it back on two days ago, it has been in a loop where I get the 'Finalizing device setup' screen. It get to 100% and then restarts the whole thing over again. Have tried soft start from the power button, soft start from the volume toggle keys and most recently have removed and reinstalled the battery. Each re-set starts the pattern all over again. Help :-)