K4 This device is not authorised as a test kindle

superpomme · 03-24-2023, 06:06 AM

Hi, I was wondering if anyone can help me. I got a k4 set up with the jailbreak, mkk, usb networking, kual, and python3, and I set it to auto load ssh on boot.

Everything was working fine and then I tried to get it to connect to wifi, but it was refusing. I went into usb networking and set it to use a unique mac, and the wifi then connected, however now it is refusing to load kual stating "This device is not authorised as a test kindle"

I tried a reboot, a hard reboot, a reinstall of the jailbreak, reinstall of mkk but it is still doing the same.

k4 silver, with the version showing 4.1.4. Note that this isn't registered - is that needed?

I do still have ssh access to it - is there any way to get kual working again?

Thank you

superpomme · 03-24-2023, 07:03 AM

Sorry - I got it working!

For the record, I was being dumb, and left the wifi on, so each time I reinstalled mkk, it then updated and blocked it.

Turned off wifi
installed mkk again
helper+ -> "prevent OTA updates"

(I had clicked the prevent ota earlier, but while in usbnetworking mode so it hadn't installed)

Thanks. Can I mark this thread resolved?

superpomme · 03-24-2023, 08:17 AM

really sorry to spam this post, but that only seems to fix it for a while and then it blocks it again. Is there something I'm missing here? I have other ones that are working fine on wifi without getting blocked.

Thanks

-> I tried blocking the kindle wan access, but doing so looks to then block the device from working over wifi too. I note that the kindles that aren't giving me these issues are on 4.1.1 while the ones that are blocking me look to be on 4.1.4 - would this explain the disparity?

-> for future reference - I used Kubrick which worked perfectly, and was able to downgrade to 4.1.1 which doesn't have the same issue. All working great now.

mattcd216 · 04-06-2023, 12:06 PM

Any luck with this? Same for me - keep trying mkk install, but every time wifi turns on I get the error message when trying to use kual.

matt

superpomme · 05-14-2023, 06:54 AM

sorry, didn't see your reply. Yea the fix was to downgrade the kindle firmware using Kubrick

tubular · 07-10-2023, 06:23 PM

Quote:

Originally Posted by superpomme

sorry, didn't see your reply. Yea the fix was to downgrade the kindle firmware using Kubrick

Hello, may I ask you how you used Kubrick exactly?
I was unable to boot Kubrick using a USB flash drive. I had more succes in a virtual machine, but now I am stuck at "Putting device into Fastboot mode ... Waiting for device".

screenshot

I have exactly the same model and my device is also on the 4.1.4 firmware. I am unable to install KUAL because of the "This device is not authorized as a test Kindle by the developer of this item" error.

tubular · 07-10-2023, 06:49 PM

Edit: I managed to install KUAL. The trick was indeed to put the Kindle in airplane mode before reinstalling MKK. Thanks a lot for describing your solution, superpomme.

I am still interested in a downgrade to 4.1.1 however, because you indicated this is only a temporary fix.

tubular · 07-17-2023, 02:35 AM

It turns out that was only a temporary fix indeed. The "This device is not authorized as a test Kindle by the developer of this item" error resurfaced.

I don't know yet if it solves this issue, but finally I did manage to downgrade the firmware to 4.1.1 using Kubrick. On recent systems, the live USB just refused to boot. Even a 2015 laptop didn't work. However, it worked flawlessly on a 2010 ThinkPad (the T410s).

03-24-2023, 06:06 AM	#1
superpomme Enthusiast Posts: 42 Karma: 100218 Join Date: May 2021 Device: kobo touch, k3, k4, Nook Simple touch	This device is not authorised as a test kindle Hi, I was wondering if anyone can help me. I got a k4 set up with the jailbreak, mkk, usb networking, kual, and python3, and I set it to auto load ssh on boot. Everything was working fine and then I tried to get it to connect to wifi, but it was refusing. I went into usb networking and set it to use a unique mac, and the wifi then connected, however now it is refusing to load kual stating "This device is not authorised as a test kindle" I tried a reboot, a hard reboot, a reinstall of the jailbreak, reinstall of mkk but it is still doing the same. k4 silver, with the version showing 4.1.4. Note that this isn't registered - is that needed? I do still have ssh access to it - is there any way to get kual working again? Thank you Last edited by superpomme; 03-24-2023 at 06:15 AM.

03-24-2023, 08:17 AM	#3
superpomme Enthusiast Posts: 42 Karma: 100218 Join Date: May 2021 Device: kobo touch, k3, k4, Nook Simple touch	really sorry to spam this post, but that only seems to fix it for a while and then it blocks it again. Is there something I'm missing here? I have other ones that are working fine on wifi without getting blocked. Thanks -> I tried blocking the kindle wan access, but doing so looks to then block the device from working over wifi too. I note that the kindles that aren't giving me these issues are on 4.1.1 while the ones that are blocking me look to be on 4.1.4 - would this explain the disparity? -> for future reference - I used Kubrick which worked perfectly, and was able to downgrade to 4.1.1 which doesn't have the same issue. All working great now. Last edited by superpomme; 03-28-2023 at 03:41 PM.

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03-24-2023, 07:03 AM	#2
superpomme Enthusiast Posts: 42 Karma: 100218 Join Date: May 2021 Device: kobo touch, k3, k4, Nook Simple touch	Sorry - I got it working! For the record, I was being dumb, and left the wifi on, so each time I reinstalled mkk, it then updated and blocked it. Turned off wifi installed mkk again helper+ -> "prevent OTA updates" (I had clicked the prevent ota earlier, but while in usbnetworking mode so it hadn't installed) Thanks. Can I mark this thread resolved?

04-06-2023, 12:06 PM	#4
mattcd216 Enthusiast Posts: 29 Karma: 10 Join Date: Jan 2023 Device: kindle 4 D01100	Any luck with this? Same for me - keep trying mkk install, but every time wifi turns on I get the error message when trying to use kual. matt

05-14-2023, 06:54 AM	#5
superpomme Enthusiast Posts: 42 Karma: 100218 Join Date: May 2021 Device: kobo touch, k3, k4, Nook Simple touch	sorry, didn't see your reply. Yea the fix was to downgrade the kindle firmware using Kubrick

07-10-2023, 06:49 PM	#7
tubular Junior Member Posts: 5 Karma: 10 Join Date: Jul 2023 Device: K4	Edit: I managed to install KUAL. The trick was indeed to put the Kindle in airplane mode before reinstalling MKK. Thanks a lot for describing your solution, superpomme. I am still interested in a downgrade to 4.1.1 however, because you indicated this is only a temporary fix.

07-17-2023, 02:35 AM	#8
tubular Junior Member Posts: 5 Karma: 10 Join Date: Jul 2023 Device: K4	It turns out that was only a temporary fix indeed. The "This device is not authorized as a test Kindle by the developer of this item" error resurfaced. I don't know yet if it solves this issue, but finally I did manage to downgrade the firmware to 4.1.1 using Kubrick. On recent systems, the live USB just refused to boot. Even a 2015 laptop didn't work. However, it worked flawlessly on a 2010 ThinkPad (the T410s).

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