PW2 PW2 not detecting the hotfix

[54BR]

I've jailbreaked my PW2 once using languagebreak method, everything was going neat, until I closed koreader, and Kual didn't open again because "permissions expired". Try reconfigure and updating Kual with no success, because was not detecting the hot fix, so I've decided jailbreak the kindle again from zero making a factory reset. Tried the winterbreak and languagebreak (again), and the hot fix still doesn't get recognized, because the kindle it's not letting me to update the device.

Any ideas, suggestions, am I doomed? Thanks in advance.