Yes, there are recent instances of recovery with a rapidly-disappearing userstore.
As a recap for all concerned, you can do it on linux by running the following in a terminal prompt:
Code:
mountpoint=/media
# Usually devices are mounted to /media but udisks2 is insane by default.
[[ -d "/run/media/$EUID/" ]] && mountpoint="/run/media/$EUID/"
# Why must Ubuntu patch the world???
[[ -d "/media/$EUID/" ]] && mountpoint="/media/$EUID/"
while true; do
touch $mountpoint/Kindle/DO_FACTORY_RESTORE
done
And then rebooting the Kindle while it is attached to the computer.
Some similar process can probably be done in Windows' cmd.exe but I have no idea what the syntax might be. Also, Windows is annoying because mounting drives and getting access may or may not be delayed while it asks you stupid questions like "do you want to use your Kindle for ReadyBoost (whatever terribly unwise thing that may be
)".