Originally Posted by knc1
Do you have any of our packages installed or made any changes to system files?
(hmm... you must have - maybe you just forgot)
Most probably, but I reset it to factory defaults. Doesn't that revert everything to its original state?
I also had errors while updating to 3.4 on my 3.3 jailbroken kindle. But it updated fine when I reset it.
As for now it's clean in its [apparently] factory state.
It was still jailbroken. I didn't know that, probably because I didn't RTFM.
I'm double dumb for not paying enough attention on the first runs to the feedback messages kindle provides.