C&P
Start with a fresh reboot
1. Hit menu button
2. Hit the channel minus button (below OK button on the remote) 5X times then hit OK.
3. Hit OK again
4. enter your Password 0000
5. Hit OK again then you would see a saving data pop up if you were not in this mess.
6. factory default done, lets hope you are back to NTSC again

I read and this is thanks to Topper 905 that there was success with plugging in the usb with the same factory file on it, and leaving it there for about 10 minutes until i saw the message appears on the box that says data reset,press ok and the box reset itself.