u/sucksfor_you

So I jailbroke my coloursoft when I got it as it wasn't on the latest firmware. Decided not to install koreader as I'd had problems with it in the past.

Then Amazon came out with dark mode, so I decided to turn updates back on, and updated to whatever firmware it was that introduced dark mode. (don't currently have my kindle to hand).

Obviously the jailbreak was patched and I can no longer open the KUAL book. Should there be a future jailbreak, can I simply use that? Should I reset my kindle?