[NiLuJe]

Iff you have shell access (preferably in main, but diags works too, if there's even one on a KT2, I can never remember), then you don't need a touchscreen to install stuff.

You can basically just follow everything along until the mention of running MRPI comes in, at which point you'll just have to start it manually in a *main* root shell: /mnt/us/extensions/MRInstaller/bin/mrinstaller.sh

(In which case you also don't need KUAL).

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If, instead, you only have a diags shell, you'll have to install stuff manually, by unpacking packages w/ kindletool, chroot'ing in main (if we can, dunno, if we can't, things get hairier as you won't be able to use install scripts), and running the install script(s) manually from there.

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I have no idea if someone's ever setup the WiFi programmatically on a Kindle, but that very vaguely rings a bell.