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Old 05-08-2026, 07:10 PM   #1
RDavidson
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Question Will my older jailbroken Kindle still work with the store?
I've got a Kindle Voyage 7gen with firmware version 5.8.10 on it.

It's already jailbroken, from years ago, and I have KUAL "v2.7 (20160721,a)" on it. According to the KUAL menu, the "Back Door Lock" is enabled. (I believe newer versions of KUAL have different ways to prevent automatic updates.)

I've also had it in airplane mode for as long as I can remember, but now I want to take it off airplane mode because I need to download a newly-purchased book.

Is this setup sufficient to prevent automatic updates?

Will I be able to download newly-purchased books from the store with this firmware, or will Amazon make me update to newer firmware?

And if I do need to update, what's the best way to go about it?
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Old 05-09-2026, 02:12 PM   #2
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At the moment it still works. For how long no one can say. Also no one can say if the jailbreak will help delay the inevitable.
Last edited by Josieb1; 05-09-2026 at 03:22 PM.
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Old 05-12-2026, 11:52 AM   #3
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Be aware that firmware updates are now apparently separate from DRM updates. Older devices with firmware OTA blocks are being remotely given new DRM via a debug interface. If you go online to download a purchase you might still get new unbroken DRM.
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Old 05-12-2026, 11:56 AM   #4
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You may all want to check this thread https://www.mobileread.com/forums/sh...47#post4585447
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Old 05-12-2026, 12:10 PM   #5
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OP has a Voyage, which is a KFX capable device. It is not being cut off on the May 20 deadline.
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Old 05-12-2026, 12:24 PM   #6
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Originally Posted by Frogm4n View Post
OP has a Voyage, which is a KFX capable device. It is not being cut off on the May 20 deadline.
No, but those get the new drm 5.12.2.2 that doesn't open in calibre
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Old 05-12-2026, 03:33 PM   #7
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No, but those get the new drm 5.12.2.2 that doesn't open in calibre
I don't believe that is true.

I have been looking back at older firmware versions and as far as I can tell that code that allows DRM to be modified without a full firmware update is present in firmware version 5.12.2.2 (only released for two Kindle models) and versions 5.15.1 or greater.

The Kindle Voyage maxed out at firmware version 5.13.6, so as far as I can tell it should be unable to receive the new DRM.

It would be nice to get confirmation of this one way or another from Voyage owners.
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Old 05-12-2026, 03:52 PM   #8
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Originally Posted by jhowell View Post
I don't believe that is true.

I have been looking back at older firmware versions and as far as I can tell that code that allows DRM to be modified without a full firmware update is present in firmware version 5.12.2.2 (only released for two Kindle models) and versions 5.15.1 or greater.

The Kindle Voyage maxed out at firmware version 5.13.6, so as far as I can tell it should be unable to receive the new DRM.

It would be nice to get confirmation of this one way or another from Voyage owners.
Do you think if I jailbroke my PW3 and then installed 5.13.7 that I'd be safe?
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Old 05-12-2026, 04:09 PM   #9
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Do you think if I jailbroke my PW3 and then installed 5.13.7 that I'd be safe?
I've seen a couple of reports that seem to confirm what @jhowell stated. So I think you should be safe enough.
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Old 05-12-2026, 10:34 PM   #10
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I don't believe that is true.

I have been looking back at older firmware versions and as far as I can tell that code that allows DRM to be modified without a full firmware update is present in firmware version 5.12.2.2 (only released for two Kindle models) and versions 5.15.1 or greater.

The Kindle Voyage maxed out at firmware version 5.13.6, so as far as I can tell it should be unable to receive the new DRM.

It would be nice to get confirmation of this one way or another from Voyage owners.
My Voyage still gets KFX files. I downloaded some yesterday..
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Old 05-13-2026, 07:39 AM   #11
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My Voyage still gets KFX files. I downloaded some yesterday..
It is not a question of receiving KFX but whether those books will have new DRM that was not seen prior to this year. Unless you mean they import as KFX instead of KFX-ZIP, which is what I expect occur.
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Old 05-13-2026, 09:16 AM   #12
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I've seen a couple of reports that seem to confirm what @jhowell stated. So I think you should be safe enough.
If filling up the storage doesn't work once the K4PC method is over. I'll try a jailbreak and installing 5.13.7.
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Old 05-13-2026, 11:21 AM   #13
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If filling up the storage doesn't work once the K4PC method is over. I'll try a jailbreak and installing 5.13.7.
You could also consider trying the new method mentioned here.
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Old 05-13-2026, 05:32 PM   #14
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It is not a question of receiving KFX but whether those books will have new DRM that was not seen prior to this year. Unless you mean they import as KFX instead of KFX-ZIP, which is what I expect occur.
Yes, they import as KFX
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Old 05-14-2026, 02:59 PM   #15
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You could also consider trying the new method mentioned here.
Once it works and if I do jailbreak my PW3. If the filled storage works, I'd stick with that.
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