My jailbroken Kindle PW5 running KOReader went into an unfixable boot loop (a very common issue with the PW5). I had a hell of a time trying to get it replaced. Finally got my refund and tried to find a new PW5, but tried 3 different shops and they were all 5.14.3.0.1… the dream is over. Now I’m back on a newer revision Libra 2 and really enjoying the crappy battery life and random frontlight crashes.