Hey!
Before anything else, plug it into a computer and copy the whole documents folder, especially the .sdr folder next to your book. That's where the Kindle keeps your highlights and notes, so once you have a copy a reset can't take them. KRDS or kindle-reading-dashboard (there's a thread about it here) can read those sidecar files and pull the highlights out, and the basic scripts work on a normal Kindle mounted over USB. I haven't tried it on a Scribe 3, so run it on the copy, not the device.
