MobileRead Forums - View Single Post - KUAL: Kindle Unified Application Launcher (v2.7)

Diavolesku · 10-25-2025, 11:31 AM

I spent half a day struggling with this, finally gave up and hoping someone can help. I have a Kindle Touch (B011 1408) running on 5.3.7.3 software. I've used the 1.16.N jailbreak for K5 successfully (got the message). Then went ahead and installed KUAL - the line in the library appeared immediately, however upon clicking I got the error message "This device is not authorized as test Kindle...". After a short search in the forum, I found an article recommending that the hotfix is installed, which I did, on top of it I pasted the KUAL Booklet v2.7.37 install, added the MRPI and ran the ;log mrpi (device restarted successfully).

However, the only difference is that now when touching KUAL I get "This item is not signed by an authorized developer. Please contact the developer". I can confirm that in the two hours since I've did the jailbreak I have not changed the username or updated the firmware (WIFI has been off the whole time).

I am after installing a single .bin file, a bulgarian translation so my mother can use the menu - https://github.com/kaloyan-raev/kindle-nt-l10n-bg/
According to it's developer it can be placed in the root folder of a JB device and will install via Update buton, however it gets deleted every time after I eject the Kindle. It doesn't get deleted from the mrpackages folder, but when running the ;log mrpi it does not install the language pack (all the screens run and device restarts successfully, but the update is not applied).

Any thoughts?

10-25-2025, 11:31 AM	#2420
Diavolesku Junior Member Posts: 1 Karma: 10 Join Date: Oct 2025 Device: Kindle Touch (B011)	KUAL error messages I spent half a day struggling with this, finally gave up and hoping someone can help. I have a Kindle Touch (B011 1408) running on 5.3.7.3 software. I've used the 1.16.N jailbreak for K5 successfully (got the message). Then went ahead and installed KUAL - the line in the library appeared immediately, however upon clicking I got the error message "This device is not authorized as test Kindle...". After a short search in the forum, I found an article recommending that the hotfix is installed, which I did, on top of it I pasted the KUAL Booklet v2.7.37 install, added the MRPI and ran the ;log mrpi (device restarted successfully). However, the only difference is that now when touching KUAL I get "This item is not signed by an authorized developer. Please contact the developer". I can confirm that in the two hours since I've did the jailbreak I have not changed the username or updated the firmware (WIFI has been off the whole time). I am after installing a single .bin file, a bulgarian translation so my mother can use the menu - https://github.com/kaloyan-raev/kindle-nt-l10n-bg/ According to it's developer it can be placed in the root folder of a JB device and will install via Update buton, however it gets deleted every time after I eject the Kindle. It doesn't get deleted from the mrpackages folder, but when running the ;log mrpi it does not install the language pack (all the screens run and device restarts successfully, but the update is not applied). Any thoughts?