Kindle just lost JailBreak, and hotfix doesn't work. Help Please !

[maac2212]

Update: So the device still being jailbreaked, Kual menu didn't show up because I accidentally delete it.
I restore the file and everything is fine again.


Hello,
So here is how my nightmare begins:
I did jailbreak my Kindle Paperwhite 3 (when I bought it, it’s firmware was 5.6.5 ). I also did the hotfix stuff, then I updated to 5.7.2 manually. Everything was fine, I installed Kual, KoReader (I have a lot of pdf to read, and the default pdf reader isn't very good), the device and programs operate very well.

Today, I was trying to install some other stuffs (Python, Mobile Kindlet Kit, LibrarianSync). LibrarianSync doesn’t show up in Kual menu, so I think restarting the device would help, when it boots up, Kual doesn’t show up either. I checked the firmware version which is currently 5.7.4.1. I think the device losts Jailbreak because I did some bad installing steps

Here’s what I’ve tried
_ I restart the device (until now, it’s about 6, 7 times..), Kual doesn’t show up…
_ I reinstall the hotfix. I place the bin file in the root directory, when I ejected my Kindle, this message appear:
“Update Error: An invalid update file has been loaded on your device. Please go to www.amazon.com ….”
Sometime, the above message doesn’t appear, but I can’t update the device (the “Update Your Kindle” is grey out )
_ I tried to re-jailbreak, but it doesn’t work.
_ And I've never reset my device.

Maybe when I install other stuffs, I did some steps incorrectly, but how come my Kindle losts its jailbreak . I’ve done some research, but now I don’t know what to do.
Do you have any solution
Thanks in advance.

Update: So the device still being jailbreaked, Kual menu didn't show up because I accidentally delete it. I restore the file and everything is fine again.
Thank you very much .

[NiLuJe]

I may need to update the hotfix for 5.7.4.1, lemme check.

EDIT: In the meantime, DO NOT factory reset .

[NiLuJe]

There, the hotfix should now run on 5.7.4.1, which should get you back on track.
As usual, you'll need to reinstall basically everything.

Make sure you're not using a crappy Homescreen/Library sorting, so you get to see KUAL.

[encol]

This is strange: also in my PW3 i jailbreaked from 5.6.5 and some days ago i updated to 5.7.4.1, but the hotfix worked!

[maac2212]

Ah, so I calmly think back about what I did, and I remember when I was in Document folder, I delete some files (before that, I installed Collection Manager, but I don't use it so I want to delete it ). So maybe I accidentally delete the Kual file.

I check in the trash, i see the Kual file, I restore that file, now Kual menu show up again, everything back to normal.

So the device still being jailbreaked, Kual menu didn't show up because I accidentally delete it.

Thank you very much