Yes if you back up everything you can retrace steps to:
track ball and power button > bootloader > recovery > volume up and power button > backup/restore (trackball to confirm) > Nand restore.
HTH
This is a discussion on I need help with Froyo update!!!! within the Nexus One Development & Hacking forums, part of the Nexus One category; Yes if you back up everything you can retrace steps to: track ball and power button > bootloader > recovery > volume up and power ...
Yes if you back up everything you can retrace steps to:
track ball and power button > bootloader > recovery > volume up and power button > backup/restore (trackball to confirm) > Nand restore.
HTH