It is possible to set the unsupported model numbers in the kindletool-v1.6.4.97-mingw at least.
To create a package with one, you have to run
Code:
set KT_WITH_UNKNOWN_DEVCODES=1
before running the create command.
293 and 294 are the device ID for pw32GB
I'm not sure what other arguments are needed to repackage the hotfix correctly, which is currently a packakge of type FC03.
These commands would repackage the hotfix with type FD04.
Code:
set KT_WITH_UNKNOWN_DEVCODES=1
kindletool.exe convert Update_jailbreak_hotfix_1.14.N_install.bin
kindletool.exe create ota2 -d 293 -d 294 Update_jailbreak_hotfix_1.14.N_install_converted.tar.gz Update_jailbreak_hotfix_1.14.PW32_install.bin