Originally Posted by Poetcop
I'd like to offer my Kindle Touch to try out these modes, since I don't think it can get much more bricked. My only means of talking to it now is through MfgTool (fastboot mode does something, but I can't get the tool to connect with it), and though I'm trying to learn how to create my own u-boot images to get me out of this it's going to be a really long time. It's a slim chance, but it would be amazing if one of those got it into a better state (maybe even factory state??)
If you can get to fastboot mode, you can do:
sudo ./fastboot setvar bootmode reset
sudo ./fastboot setvar bootmode factory
You can always change them back later...
to try out those modes. You need to reboot to see what they do. You might need a serial console to make sense of what they are doing. I thing I did try factory and it dropped to a bist command line on the serial port, as I recall.