KUAL: Kindle Unified Application Launcher (v2.7) - Page 161

jrronimo · 06-22-2025, 03:51 PM

Quote:

Originally Posted by SpartanHeavy

You need to install the DevCerts update.

https://www.mobileread.com/forums/sh....php?p=4506164

Wonderful, thank you!

In case anyone else comes along and finds this, to install the devcerts on (at least) a K5/Touch, I followed the directions in this post:

Quote:

Originally Posted by MiniBookWorm

Downloaded the Cert package and put Update-mkk-20250419-k3g-B006_keystore-install.bin in the root.

Replaced my prior KUAL-KDK-1.0.azw2 with the new one.

Ran the Kindle update, and everything works properly.

marianico · 06-25-2025, 02:20 PM

Has anyone managed to fix this on a KT5?

I tried installing the DevCerts update and replacing the KUAL-KDK-2.0.azw2, but I still get the error message, including when trying to access JBPatch.

I then reinstalled the jailbreak, installed the DevCerts update, and replaced the KUAL-KDK-2.0.azw2, and the error still appears.

Finally, I performed a factory reset, installed the jailbreak, installed the new devcerts, the Mobileread Kindlet Kit, MRPI, and the new Kual file, and I still get the error.

shamanNS · 06-25-2025, 06:28 PM

Don't use azw2 file, install KUAL bin installer using MRPI.

maxwell1755 · 07-18-2025, 11:09 AM

Quote:

Originally Posted by shamanNS

Don't use azw2 file, install KUAL bin installer using MRPI.

Isn't MRPI a KUAL extension? How can I use MRPI to install KUAL if I need KUAL to run MRPI?

shamanNS · 07-18-2025, 11:35 AM

@maxwell1755 You use it / run in / start it (MRPI) directly via ;log mrpi search-bar command that was injected / defined when you installed the hotfix.

That's the alternative way of runing MRPI script and that's what's being used to install KUAL itself. It does look somewhat confusing and counter-intuitive

topoto · 07-19-2025, 02:25 PM

TLDR if you are on PW2 5.12.2.2, install KUAL by command

Code:

;log mrpi

in search bar.

if you are on PW2 5.12.2.2 like me, after Jailbreaking, the KUAL-KDK-2.0.azw2 is still not working and giving this error "This device is not authorized as a test Kindle by the developer of this item".

Turns out that I can install .bin by the MRPI although the "install update" is greyed out on 5.12.2.2.

put Update_KUALBooklet_v2.7.37_install.bin under the /mrpackages folder, and then run

Code:

;log mrpi

in search bar.

It resolved the issue for me.

kakkun · 07-21-2025, 10:14 PM

Hi, I'm trying to write a custom extension to use my old PW3 as a dashboard, but I'm having some trouble with stopping the framework.

I've got some very minimal code at the moment:

Code:

#!/bin/sh

DIR="$(dirname "$0")"
LOG="$DIR/log.txt"

echo "Stopping lab126_gui" >> "$LOG"
initctl stop lab126_gui >> "$LOG"
echo "Stopped lab126_gui" >> "$LOG"

Calling this from within SSH works, but when I start it via KUAL, "Stopping lab126_gui" is the last thing that is logged.

Note that I am able to launch Koreader and kterm.
I also don't know if it's related, but I also keep getting log files in my library about, "Mismatches between cc.db entries and storage"

Any help is appreciated, thanks!

rbk · Yesterday, 08:10 AM

Hi everyone, I hope this is the right place to ask:

I've followed the main guides to install Winterbreak and the Hotfix on my Paperwhite 6th Edition; then did try to install KUAL several times now on my both via hotfix as well as via MRPI.

Both seems to work fine up to a point; especially with MRPI, I get all the icons after executing `;log mrpi`; it does notably more than running it without copying the KUAL_..._install.bin to `/mrpackages` beforehand.

It shows messages regarding the KUALbooklet.sh and even even flashes the SUCCESS message on me before restarting the UI!

However, there is NO KUAL booklet available on my device. I tried searching, I tried recents, I tried local (i.e. downloaded) library files only, I tried all library files, I looked through each page; NOTHING. I also tried the install in both airplane mode and connected; there doesn't seem to be a difference.

The only thing that changes is that my `/mrpackages` is empty directly after.

My Kindle drive shows the winterbreak.log, the hotfix book is still available; for what it's worth it looks like I didn't mess up the previous steps.

The device also has 570MB free space left; which should hopefully be fine?

I've also tried running the KUAL Uninstaller and installing again; which also gives me a SUCCESS message -- with pretty much the same result though.

If anyone can point me to anything I could have messed up or double-check, I'd be awfully glad.

07-19-2025, 02:25 PM	#2406
topoto Junior Member Posts: 1 Karma: 10 Join Date: Jul 2025 Device: kindle PW2	PW2 5.12.2.2 must use .bin to install TLDR if you are on PW2 5.12.2.2, install KUAL by command Code: ;log mrpi in search bar. if you are on PW2 5.12.2.2 like me, after Jailbreaking, the KUAL-KDK-2.0.azw2 is still not working and giving this error "This device is not authorized as a test Kindle by the developer of this item". Turns out that I can install .bin by the MRPI although the "install update" is greyed out on 5.12.2.2. put Update_KUALBooklet_v2.7.37_install.bin under the /mrpackages folder, and then run Code: ;log mrpi in search bar. It resolved the issue for me.

07-21-2025, 10:14 PM	#2407
kakkun Junior Member Posts: 1 Karma: 10 Join Date: Jul 2025 Device: PW3	Hi, I'm trying to write a custom extension to use my old PW3 as a dashboard, but I'm having some trouble with stopping the framework. I've got some very minimal code at the moment: Code: #!/bin/sh DIR="$(dirname "$0")" LOG="$DIR/log.txt" echo "Stopping lab126_gui" >> "$LOG" initctl stop lab126_gui >> "$LOG" echo "Stopped lab126_gui" >> "$LOG" Calling this from within SSH works, but when I start it via KUAL, "Stopping lab126_gui" is the last thing that is logged. Note that I am able to launch Koreader and kterm. I also don't know if it's related, but I also keep getting log files in my library about, "Mismatches between cc.db entries and storage" Any help is appreciated, thanks! Last edited by kakkun; 07-21-2025 at 10:17 PM.

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06-25-2025, 02:20 PM	#2402
marianico Junior Member Posts: 8 Karma: 10 Join Date: Oct 2012 Device: No way	Has anyone managed to fix this on a KT5? I tried installing the DevCerts update and replacing the KUAL-KDK-2.0.azw2, but I still get the error message, including when trying to access JBPatch. I then reinstalled the jailbreak, installed the DevCerts update, and replaced the KUAL-KDK-2.0.azw2, and the error still appears. Finally, I performed a factory reset, installed the jailbreak, installed the new devcerts, the Mobileread Kindlet Kit, MRPI, and the new Kual file, and I still get the error.

06-25-2025, 06:28 PM	#2403
shamanNS Wizard Posts: 1,124 Karma: 12345678 Join Date: Feb 2010 Location: Serbia Device: Kindle PW5, Kobo Libra 2, Kindle PW1	Don't use azw2 file, install KUAL bin installer using MRPI.

07-18-2025, 11:35 AM	#2405
shamanNS Wizard Posts: 1,124 Karma: 12345678 Join Date: Feb 2010 Location: Serbia Device: Kindle PW5, Kobo Libra 2, Kindle PW1	@maxwell1755 You use it / run in / start it (MRPI) directly via ;log mrpi search-bar command that was injected / defined when you installed the hotfix. That's the alternative way of runing MRPI script and that's what's being used to install KUAL itself. It does look somewhat confusing and counter-intuitive

Yesterday, 08:10 AM	#2408
rbk Junior Member Posts: 1 Karma: 10 Join Date: Aug 2025 Device: Kindle Paperwhite (6th Generation) v5.12.2.2	Hi everyone, I hope this is the right place to ask: I've followed the main guides to install Winterbreak and the Hotfix on my Paperwhite 6th Edition; then did try to install KUAL several times now on my both via hotfix as well as via MRPI. Both seems to work fine up to a point; especially with MRPI, I get all the icons after executing `;log mrpi`; it does notably more than running it without copying the KUAL_..._install.bin to `/mrpackages` beforehand. It shows messages regarding the KUALbooklet.sh and even even flashes the SUCCESS message on me before restarting the UI! However, there is NO KUAL booklet available on my device. I tried searching, I tried recents, I tried local (i.e. downloaded) library files only, I tried all library files, I looked through each page; NOTHING. I also tried the install in both airplane mode and connected; there doesn't seem to be a difference. The only thing that changes is that my `/mrpackages` is empty directly after. My Kindle drive shows the winterbreak.log, the hotfix book is still available; for what it's worth it looks like I didn't mess up the previous steps. The device also has 570MB free space left; which should hopefully be fine? I've also tried running the KUAL Uninstaller and installing again; which also gives me a SUCCESS message -- with pretty much the same result though. If anyone can point me to anything I could have messed up or double-check, I'd be awfully glad.