Well, you can connect the updated/working Maxi to a pc via its mini usb port with the supplied usb cable. Then enable usb connect mode on the maxi (the option popped up when I plugged in the cable). Now you can copy all the contents of the internal SD card to the pc's drive (quite a few GB- but doesn't include the android os files). This appears to be all the files you get when you do updates. I have read that if you copy the files back to the maxi, it should "restore" all the scantool updates.