Unbranded Chinese Head Unit Problems (Wince)

Had this unit for 2 days, and today it started doing this. Has anyone come across this before? No real idea how proceed.

If I'm fast I can browse the flash memory and load "Home.exe" and it loads the stereo GUI as normal. otherwise it just keeps rebooting.

Any help would be very appreciated.

Thanks

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Have you tried the reset pinhole? There is also a way to restore the system files using Total Commander CE. I found you have to run it from the GPS folder if you don't have acess to WinCE interface.