Talk:Kindle 2 US, Int'l and Kindle DX Screen Saver Hack
I tried doing this update with my Kindle 2 US edition, and upon restarting I got an 'update failed' with an error code of 0003. The kindle then restarted and had deleted the .bin file from the flash. This is with Kindle 2.3 firmware.
Go through the regular uninstall process.
btw, you are sufficently warned that something might happen, just to let you know.