First off thank you for this. I just finished following all of your instructions, but my library only has "Kindle Feedback" - there is no KUAL. The firmware is 5.12.3, so the commands in diag were a bit different, but I managed to root the device and run the jb.sh file ok, as well as copy the files for KUAL, helper, and MRIinstaller. I just don't know how to get KUAL to show up - any ideas?
Cool note for others: The V wire is not needed, I just used tx, rx, and GND.
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