Originally Posted by pportnawak
can someone help me on this?
I upgraded y KT from firmware 5.1.0 to 5.1.2 with the bin from amazon.
From this time I cannot open any book : purchased or not mobi or pdf.
It said that "I cannot open this book: it this a amazon book .. blahblah ..."
the KT became an useless thing after this update.
is downgrading possible or is there a fix?
This is the first report of this problem that I am aware of. No fix yet. You can downgrade using the "simple debricking" method in the dev corner sticky thread.