My experience with a KV:
I installed the jailbreak and then I did have a bootloop, I think, where all I got was the tree and dude reading. The buttons still gave haptic feedback, but I couldn't get it to go any further. Windows didn't recognize it as a drive when I plugged it in.
I hooked it up to a linux machine hoping I could figure something out, and as soon as I did, it showed a progress bar and then restarted. All is well, I'm jailbroken and running KUAL.
I believe it happened after I did this:
https://www.mobileread.com/forums/sho...92&postcount=7
and before I applied NiLuJe's bridge update. I wish I had taken better notes.
I don't know what happened, but it's working great now. Thanks for all your work!