Troubleshooting Sudden factory reset without any action?

[T1t0]

About a year ago, I jailbroke my PW 11 Gen using Winterbreak. Since then, I've been using Koreader and have been very happy with it. I've disabled updates, and version 5.17.1 is currently installed. That should also be the version that's been on it for a year.

The problem is this: I just wanted to continue reading, but the Kindle wouldn't wake up. The power button didn't work; I only saw the KoReader status page for the book. When I connected the Kindle to the power supply, it said that I had to charge it first. So that's what I did. The Kindle restarted and it seems that everything on it has been deleted. No homebrew, no Kual, no books. No account, no Wi-Fi. It looks like the device has been completely factory reset! How can this happen? Or has something else happened? What do I do now, who can help me?

[jackm8]

Do a hard reset. Hold power, select "restart" in the menu that shows up. After the reset, leave your device alone for a few minutes. It can take a while for all the content to show up. Also, look how much space is on your device, and free it if needed.

Something similar happened to me as I ran out of space. I was filling my Kindle with screenshots and didn't notice that all my space was filled. Koreader softlocked itself, then Kindle OS had some problems booting up. Freeing some space and reset, fixed it for me.

[T1t0]

I don't have access to the device right now, but I know that last night it showed me that over 14 GB were free. The device seemed to be completely in factory condition. Even when I was using it, there were no more than 30 books.

I will try the procedure you suggested this evening. But won't the hard reset remove the jailbreak? And will the protection against automatic updates also be removed? I don't want to end up with a Kindle that I can no longer jailbreak.

[T1t0]

Originally Posted by jackm8

Do a hard reset. Hold power, select "restart" in the menu that shows up. After the reset, leave your device alone for a few minutes. It can take a while for all the content to show up. Also, look how much space is on your device, and free it if needed.

Unfortunately, the tip didn't work. The Kindle boots up “normally” like an original Kindle. The device doesn't freeze either. There's nothing in the library, my Amazon account isn't there, no Wi-Fi is saved, everything is gone.

When I connect the Kindle to my PC, I can still see various jailbreak folders, but I can't find any of the epubs I used with KoReader.

I have no idea what could have caused this situation. I don't use the Kindle every day, but it was still working fine the day before yesterday. Yesterday, I opened it up, it didn't wake up, and the battery seemed to be empty. Since then, the device has been “empty” and like it was when it left the factory.