I live in Japan and just ordered a PaperWhite 2. As soon as I got it, I did a little research and set to work jailbreaking it using
this method. I was running version 5.4.2 and hadn't done anything else beyond dropping a few books onto it.
I followed the instructions and was given the option to update my Kindle, so I did so. My Kindle displayed ***JAILBREAK*** on the bottom as expected, and then froze. After waiting a while, I pushed the power button once and was informed the update failed. Then it rebooted... and rebooted... and is now stuck in a loop.
When plugged into my computer, a drive appears briefly but can't be accessed. Disk manager correctly identifies it as being from the Kindle but the drive name itself stays blank.
I'm wondering what my options are. I have a manufacturer's cable from when I screwed up rooting a Kindle Fire 7--beyond that, I'm not familiar with any of the tools used with the PaperWhite line. I also checked the debricking thread, but can't find much relating to the PW2 directly and I'd hate to exacerbate the situation by using incorrect tools.
I also can't currently turn my kindle OFF. I've tried everything. I'm not even sure how to get into recovery mode. Is there anything I can do beyond getting it replaced?