KUAL: Kindle Unified Application Launcher (v2.7) - Page 163

vaderag · 01-27-2026, 02:06 PM

Quote:

Originally Posted by Wintermutetwin

Are the KUAL instructions posted here: https://kindlemodding.org/jailbreaki...ing-kual-mrpi/

and here: https://kindlemodding.org/jailbreaki...sable-ota.html

supposed to work?

I successfully get to step 6 of Disabling OTA Updates and it says to "open KUAL"

I am assuming that it is listed as a "book" and there is no "book" named KUAL.

I have exactly the same issue
Kindlew PW 11th 5.18.3

Jailbroken all fine, even get the message saying it is installing KUAL, but it doesn't appear

retoid · 01-31-2026, 12:48 AM

I just picked up a brand new in box Kindle Scribe (2024) 64GB.
I've been following the jailbreak directions and everything has worked well until the KUAL installation.

Firmware: 5.17.2
18.2MB free storage on the Kindle currently.
I downloaded kual-mrinstaller-khf.tar and Update_KUALBooklet_HDRepack.bin (The Coplate version)
Placed the .bin into ../mrpackages/ and followed instructions, running ;log mrpi and it finishes and ends with the "Application Error" dialog. The back in Library there is no KUAL book.
I tried again and got the same results.

Not sure where to go from here. Is this not the correct version of KUAL for this Kindle?

retoid · 01-31-2026, 01:10 AM

Update from post above.
Free'd up some more space, now 38MB free on Kindle.

I have now tried installing the KUAL (coplate) .bin file that is linked here: https://kindlemodding.org/jailbreaki...ing-kual-mrpi/
Which is Update_KUALBooklet_HDRepack.bin
This does not work for me, no KUAL book appears.

I just tried grabbing the KUAL (coplate) | KUAL-c6ac782-20250419.tar.xz | 2025-Apr-19 13:37:00 | 73.5K | N/A | Upstream files from this forum and trying those.
Same result, it runs the install process and still no KUAL book.
I tried placing the Update_KUALBooklet_hotfix_c6ac782_install.bin inside the root directory and when I disconnect the Kindle from my PC it gives me a warning that an invalid update file has been loaded. And does not let me update.

retoid · 01-31-2026, 01:30 AM

Update, got it working!
I believe the issue was not having enough space freed up. I freed up 1GB and it now worked and the KUAL book is showing.

its_a_sky · Today, 02:12 AM

Great news! I finally got KUAL working on my Kindle Paperwhite 12 gen.

The Update_KUALBooklet_c6ac782_install.bin works perfectly! I found it on Reddit from this forum.

Important note: Update_KUALBooklet_HDRepack does NOT work on the latest Paperwhite.

Also, as many people in the forum have mentioned - you need to free up around 300 MB of storage space (I'm not sure of the exact amount, but enough to store the installation files). Make sure you have sufficient free space before attempting the installation.

its_a_sky · Today, 02:15 AM

Follow-up: I found the Reddit discussion that mentions this solution:

https://www.reddit.com/r/kindlejailb...rpi_on_kindle/

This thread contains information about using the Update_KUALBooklet_c6ac782_install.bin file instead of the HDRepack version for Paperwhite models. The discussions there also confirm the storage space requirements I mentioned.

its_a_sky · Today, 02:24 AM

Update: Here are the direct links for the working KUAL Booklet:

Direct Download:
https://storage.gra.cloud.ovh.net/v1...0250419.tar.xz

Official Source/Thread:
https://www.mobileread.com/forums/sh...d.php?t=225030

The "Update_KUALBooklet_c6ac782_install.bin" file is included in the tar.xz archive. Extract it and place it in the mrpackages folder on your Kindle. This version works on Paperwhite 12 gen.

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01-31-2026, 12:48 AM	#2432
retoid Junior Member Posts: 3 Karma: 10 Join Date: Jan 2026 Device: Kindle Scribe (2024)	I just picked up a brand new in box Kindle Scribe (2024) 64GB. I've been following the jailbreak directions and everything has worked well until the KUAL installation. Firmware: 5.17.2 18.2MB free storage on the Kindle currently. I downloaded kual-mrinstaller-khf.tar and Update_KUALBooklet_HDRepack.bin (The Coplate version) Placed the .bin into ../mrpackages/ and followed instructions, running ;log mrpi and it finishes and ends with the "Application Error" dialog. The back in Library there is no KUAL book. I tried again and got the same results. Not sure where to go from here. Is this not the correct version of KUAL for this Kindle?

01-31-2026, 01:10 AM	#2433
retoid Junior Member Posts: 3 Karma: 10 Join Date: Jan 2026 Device: Kindle Scribe (2024)	Update from post above. Free'd up some more space, now 38MB free on Kindle. I have now tried installing the KUAL (coplate) .bin file that is linked here: https://kindlemodding.org/jailbreaki...ing-kual-mrpi/ Which is Update_KUALBooklet_HDRepack.bin This does not work for me, no KUAL book appears. I just tried grabbing the KUAL (coplate) \| KUAL-c6ac782-20250419.tar.xz \| 2025-Apr-19 13:37:00 \| 73.5K \| N/A \| Upstream files from this forum and trying those. Same result, it runs the install process and still no KUAL book. I tried placing the Update_KUALBooklet_hotfix_c6ac782_install.bin inside the root directory and when I disconnect the Kindle from my PC it gives me a warning that an invalid update file has been loaded. And does not let me update.

01-31-2026, 01:30 AM	#2434
retoid Junior Member Posts: 3 Karma: 10 Join Date: Jan 2026 Device: Kindle Scribe (2024)	Update, got it working! I believe the issue was not having enough space freed up. I freed up 1GB and it now worked and the KUAL book is showing.

Today, 02:12 AM	#2435
its_a_sky Junior Member Posts: 3 Karma: 10 Join Date: Feb 2026 Device: Kindle Paperwhite 12 gen	Great news! I finally got KUAL working on my Kindle Paperwhite 12 gen. The Update_KUALBooklet_c6ac782_install.bin works perfectly! I found it on Reddit from this forum. Important note: Update_KUALBooklet_HDRepack does NOT work on the latest Paperwhite. Also, as many people in the forum have mentioned - you need to free up around 300 MB of storage space (I'm not sure of the exact amount, but enough to store the installation files). Make sure you have sufficient free space before attempting the installation.

Today, 02:15 AM	#2436
its_a_sky Junior Member Posts: 3 Karma: 10 Join Date: Feb 2026 Device: Kindle Paperwhite 12 gen	Follow-up: I found the Reddit discussion that mentions this solution: https://www.reddit.com/r/kindlejailb...rpi_on_kindle/ This thread contains information about using the Update_KUALBooklet_c6ac782_install.bin file instead of the HDRepack version for Paperwhite models. The discussions there also confirm the storage space requirements I mentioned.

Today, 02:24 AM	#2437
its_a_sky Junior Member Posts: 3 Karma: 10 Join Date: Feb 2026 Device: Kindle Paperwhite 12 gen	Update: Here are the direct links for the working KUAL Booklet: Direct Download: https://storage.gra.cloud.ovh.net/v1...0250419.tar.xz Official Source/Thread: https://www.mobileread.com/forums/sh...d.php?t=225030 The "Update_KUALBooklet_c6ac782_install.bin" file is included in the tar.xz archive. Extract it and place it in the mrpackages folder on your Kindle. This version works on Paperwhite 12 gen.