MobileRead Forums - View Single Post - Tutorial WatchThis - Software Jailbreak for any Kindle <= 5.14.2

leifan89 · 03-21-2023, 09:02 PM

Hey! I wonder if I screwed up something as I try to restore/fix the jailbreak on a Kindle Oasis 3 I just bought (firmware version 5.14.2).

I had noticed that it was unable to run Koreader and many KUAL menu options weren’t working properly, and was told that this seems like an incomplete jailbreak, and I was supposed to re-apply the hot fix.

It is worth noting that, before I started over the process of redoing the jail break, the KOA3 already came with RenameOTABinary, which I tried to apply by doing “rename”. It is not clear to me, since many KUAL menu options weren’t working properly, if the renaming actually happened, but I assume it did, because I was not able to run “Update Your Kindle” (grayed out) after loading the hot fix bin onto the Kindle to apply the hot fix bin.

This is where I think I screwed up.

I then proceeded to do a firmware reset and went through the beginning of the jailbreak process, and I was able to see the “Finished installing jailbreak” line during the boot process. However, when trying to apply the hot fix again, I am, yet again, unable to run “Update Your Kindle” (grayed out) to apply the hot fix.

I read somewhere in this thread that this is because the OTA binaries got renamed earlier and the only way to restore it is to do a firmware update with the original 5.14.2 firmware from Amazon and a factory reset. I tried that by putting the Amazon 5.14.2 firmware bin on it and doing a factory reset, which failed with an “Application error” that I had to reboot out of, and so that’s where I am now.

I think my current state is:
- Jailbroken (can see the “Finished installing jailbreak” on reboot)
- Can’t apply hot fix to complete the jailbreak
- Can’t apply original Amazon firmware either to rollback the jailbreak

What should I do?

How do I apply the hot fix without being able to run “Update your kindle”?

Is there a way to run the RenameOTABinary again to do the “restore” option? Can I get that and MRPI and KUAL installed without the hot fix?

Sorry for the long post, trying to document everything here. Thank you all so much!

03-21-2023, 09:02 PM	#924
leifan89 Enthusiast Posts: 36 Karma: 10010 Join Date: Apr 2022 Device: Kobo Libra 2, Kindle Oasis 3, Kindle Voyage, Hisense A9, reMarkable 2	Hey! I wonder if I screwed up something as I try to restore/fix the jailbreak on a Kindle Oasis 3 I just bought (firmware version 5.14.2). I had noticed that it was unable to run Koreader and many KUAL menu options weren’t working properly, and was told that this seems like an incomplete jailbreak, and I was supposed to re-apply the hot fix. It is worth noting that, before I started over the process of redoing the jail break, the KOA3 already came with RenameOTABinary, which I tried to apply by doing “rename”. It is not clear to me, since many KUAL menu options weren’t working properly, if the renaming actually happened, but I assume it did, because I was not able to run “Update Your Kindle” (grayed out) after loading the hot fix bin onto the Kindle to apply the hot fix bin. This is where I think I screwed up. I then proceeded to do a firmware reset and went through the beginning of the jailbreak process, and I was able to see the “Finished installing jailbreak” line during the boot process. However, when trying to apply the hot fix again, I am, yet again, unable to run “Update Your Kindle” (grayed out) to apply the hot fix. I read somewhere in this thread that this is because the OTA binaries got renamed earlier and the only way to restore it is to do a firmware update with the original 5.14.2 firmware from Amazon and a factory reset. I tried that by putting the Amazon 5.14.2 firmware bin on it and doing a factory reset, which failed with an “Application error” that I had to reboot out of, and so that’s where I am now. I think my current state is: - Jailbroken (can see the “Finished installing jailbreak” on reboot) - Can’t apply hot fix to complete the jailbreak - Can’t apply original Amazon firmware either to rollback the jailbreak What should I do? How do I apply the hot fix without being able to run “Update your kindle”? Is there a way to run the RenameOTABinary again to do the “restore” option? Can I get that and MRPI and KUAL installed without the hot fix? Sorry for the long post, trying to document everything here. Thank you all so much!