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

luisito · 08-25-2025, 09:31 AM

Hello,
I own a Kindle 4 NT (non-touch, firmware 4.1.3).

My device is jailbroken and MKK is installed successfully (the “You are Jailbroken” book appears, and the /developer folder is present). However, whenever I try to run KUAL-KDK-1.0.azw2 extracted from the recent KUAL snapshots (v2.7 tar.xz), I still get the message “this content is not signed by an authorized developer”.

From what I’ve read here, I believe I need the older KUAL v1.x package (the small .azw2, ~60–80 KB) that was originally made for Kindle 3/4.

Could someone please share a direct link to KUAL-v1.0.zip or KUAL-v1.1.zip, or re-upload the proper KUAL-KDK-1.0.azw2 that works on K4 NT?

Thank you very much for keeping these devices alive!

08-25-2025, 09:31 AM	#2409
luisito Junior Member Posts: 1 Karma: 10 Join Date: Aug 2025 Device: kindle gen4	Need KUAL-KDK-1.0.azw2 (old version) for Kindle 4 NT Hello, I own a Kindle 4 NT (non-touch, firmware 4.1.3). My device is jailbroken and MKK is installed successfully (the “You are Jailbroken” book appears, and the /developer folder is present). However, whenever I try to run KUAL-KDK-1.0.azw2 extracted from the recent KUAL snapshots (v2.7 tar.xz), I still get the message “this content is not signed by an authorized developer”. From what I’ve read here, I believe I need the older KUAL v1.x package (the small .azw2, ~60–80 KB) that was originally made for Kindle 3/4. Could someone please share a direct link to KUAL-v1.0.zip or KUAL-v1.1.zip, or re-upload the proper KUAL-KDK-1.0.azw2 that works on K4 NT? Thank you very much for keeping these devices alive!