Here is a hotfix build that shoudl work on all currently known touch models, and any software version. As long as the device has been jailbroken.
This is a version of the Hotfix for touch devices that will run on normal software versions ( not just the factory ). I have verified on my PW3 that the jailbreak itself remains through the rest process, but I needed this package to re-install the hotfix.
I have forked kindletool to allow me to retain software type FC04, and set all these values.