MobileRead Forums - View Single Post - Downgrade a jailbroken kindle from 5.16.21

jarviloo · 10-25-2024, 12:45 PM

Thank you for your kind help. I am facing the same situation. My device (Kindle Scribe) was jailbroken on 5.16.2, but now it was upgraded to 5.16.21 through firmware. KUAL cannot function properly after upgrading. So I decide to downgrad kindle，But I encountered difficulties when using 'runme. sh' method to downgrade because my device is Kindle Scribe and I cannot find its" VER"value.

For example, the "VER" value of other devices is:
“Kindle Paperwhite (11th Generation) - 378310
Kindle Oasis (10th Generation) - 355615
Kindle (10th Generation) - 352856
Kindle Paperwhite (10th Generation) - 336034
Kindle Oasis (9th Generation) - 325069
Kindle (8th Generation) -298743
Kindle Oasis (8th Generation) - 288285
Kindle Paperwhite (7th Generation) - 263413
Kindle Voyage (7th Generation) - 244367
Kindle (7th Generation) - 244369
Kindle Paperwhite (6th Generation) - 206145 ”
I haven't seen it in other people's discussions either.
I also did not see my device model in the "menu.json" file of the "actual Downgrader 2.0 KUAL extension".

According to my testing, the device is still in jailbroken state and the 'log mrpi' function should be normal. I tried reinstalling KUAL, but it still doesn't work properly, so I chose to downgrade. I tried using "336034" and KindleScribe's 5.16.2 firmware, but the upgrade displayed "Update Error: 12", does that mean it won't allow downgrading?
PS, is it risky to downgrade from 5.16.21 to 5.16.2?

10-25-2024, 12:45 PM	#5
jarviloo Member Posts: 11 Karma: 10 Join Date: Oct 2024 Device: kindle scribe	Thank you for your kind help. I am facing the same situation. My device (Kindle Scribe) was jailbroken on 5.16.2, but now it was upgraded to 5.16.21 through firmware. KUAL cannot function properly after upgrading. So I decide to downgrad kindle，But I encountered difficulties when using 'runme. sh' method to downgrade because my device is Kindle Scribe and I cannot find its" VER"value. For example, the "VER" value of other devices is: “Kindle Paperwhite (11th Generation) - 378310 Kindle Oasis (10th Generation) - 355615 Kindle (10th Generation) - 352856 Kindle Paperwhite (10th Generation) - 336034 Kindle Oasis (9th Generation) - 325069 Kindle (8th Generation) -298743 Kindle Oasis (8th Generation) - 288285 Kindle Paperwhite (7th Generation) - 263413 Kindle Voyage (7th Generation) - 244367 Kindle (7th Generation) - 244369 Kindle Paperwhite (6th Generation) - 206145 ” I haven't seen it in other people's discussions either. I also did not see my device model in the "menu.json" file of the "actual Downgrader 2.0 KUAL extension". According to my testing, the device is still in jailbroken state and the 'log mrpi' function should be normal. I tried reinstalling KUAL, but it still doesn't work properly, so I chose to downgrade. I tried using "336034" and KindleScribe's 5.16.2 firmware, but the upgrade displayed "Update Error: 12", does that mean it won't allow downgrading? PS, is it risky to downgrade from 5.16.21 to 5.16.2? Last edited by jarviloo; 10-25-2024 at 12:47 PM.