Installed Kual as described, first time thought messed it up because there was nothing when launched it, just a white screen only. After which can't do anything, no toolbar too in the top. Just can see the status bar, my kindle's name, the wifi and battery and time only and nothing else. The only thing I can do is just to restart it. Installed the JB perfectly, i'll just do a JB dummy test to see if it is not the one messed up, but the process went perfectly well as described. Installed and even uninstalled Kual again and installed again but doesn't work. The firmware right now is 5.9.2 the latest one and even tried Nomax's fix too from here
https://www.mobileread.com/forums/sh...68#post3562968
Already installed the JB hotfix too. But Kual not working at all. I'll edit if anything occurs.
Edit: Okay never mind, just saw above posts, well. My bad. Should have been warned about in the OP to install Kual first before upgrading or something about it not working in 5.9.2