@malfunctioning, it's likely the Backup Menu; I think it isn't something original. As far as I know, I can't get the phone to do anything except what I described - is there some special way to reboot? I'll try with the keyboard open. Sorry for delay, the n900 was my only home internet connection. @Estel, I'm thinking that the USB port could be repaired by first using a conductive cement for the 'hidden' pins, then soldering the outer sides. I'll look at the related threads.