Troubleshooting Kindle 3 Keyboard Jailbreak Install help.

RetroRider · 11-18-2025, 03:59 PM

Hello, i want to try out KOReader on a Kindle Keyboard I have, and I tried following this YouTube guide on how to jailbreak it and install KOReader.

I followed all the instructions exactly, but when i try to open KUAL, it simply tells me "Mobileread Kindlet Kit is not installed." However, I installed the B008 mkk and made sure to update the kindle afterwards, even doing it twice.

Also, if it helps, i'm on version 3.4.2

Even a factory reset doesn't help. Can anyone please help me to get this working? I would really appreciate it.

RetroRider · 11-18-2025, 04:29 PM

UPDATE: so, i got it working, i had to install the outdated MKK, and then install the new one. I prob should've listened to the comments.

But I do have a question for KOReader and Wi-Fi, how can i connect to the wifi on this device without the jailbreak breaking. I tried to connect through the actual kindle OS, but it just blocked me from opening KUAL again, saying that I needed to be added to the list of approved devices.

Ebookus · 11-18-2025, 09:21 PM

you need 3.4.3 in order to have wifi working correctly. are you logged in to an Amazon account?

11-18-2025, 03:59 PM	#1
RetroRider Junior Member Posts: 2 Karma: 10 Join Date: Nov 2025 Device: Kindle Keyboard (3rd Gen), Kindle Paperwhite 2021, Nook Glowlight 4	Kindle 3 Keyboard Jailbreak Install help. Hello, i want to try out KOReader on a Kindle Keyboard I have, and I tried following this YouTube guide on how to jailbreak it and install KOReader. I followed all the instructions exactly, but when i try to open KUAL, it simply tells me "Mobileread Kindlet Kit is not installed." However, I installed the B008 mkk and made sure to update the kindle afterwards, even doing it twice. Also, if it helps, i'm on version 3.4.2 Even a factory reset doesn't help. Can anyone please help me to get this working? I would really appreciate it.

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11-18-2025, 04:29 PM	#2
RetroRider Junior Member Posts: 2 Karma: 10 Join Date: Nov 2025 Device: Kindle Keyboard (3rd Gen), Kindle Paperwhite 2021, Nook Glowlight 4	UPDATE: so, i got it working, i had to install the outdated MKK, and then install the new one. I prob should've listened to the comments. But I do have a question for KOReader and Wi-Fi, how can i connect to the wifi on this device without the jailbreak breaking. I tried to connect through the actual kindle OS, but it just blocked me from opening KUAL again, saying that I needed to be added to the list of approved devices.

11-18-2025, 09:21 PM	#3
Ebookus Digital Grenadier Posts: 215 Karma: 2500000 Join Date: Jan 2024 Device: Kindle	you need 3.4.3 in order to have wifi working correctly. are you logged in to an Amazon account?