PW4 FW 5.10.2-5.13.3 Software Jailbreak for PW4

[NiLuJe]

I don't recall anything of the sort, FWIW, at least on meaningful devices (e.g., might have been a KT3 or KT4 quirk at one point, but that's all that vaguely rings a bell).

[Barty]

Originally Posted by Sol Arkite

Yes. I’ve seen it. But the experts in these forums I’ve seen multiple times recently say that the recent firmwares prevent downgrading. So far the research I’ve done suggests only opening up the kindle and taking a hardware approach works. Which is beyond my skill set.

I was able to downgrade my Voyage from 5.13.3 to 5.10.3 (I don't like the new Aa menu) after I jail broke. The steps aren't as scary as what's in the op of that thread. I just had to install coward's rescue pack, boot into diagnosis (restarting while USB cable is connected to PC). Used the USB upload option (I don't remember what it's called exactly). This puts the Kindle into USB storage mode. Then I just followed the prompt to copy the firmware I had downloaded (update_xxxxxxx5.10.3.xxx.bin) into root folder (/mnt/us) and restarted.

Caveat: this may not work for other devices / firmware version

Note: if all you want is to block update, look in this forum for a thread about blocking updates by renaming ota files. There's a handy kual extension down the thread that does the work for you.

[NiLuJe]

That's... interesting. I don't quite remember the details, but, yeah, having the debug flag present *may* trick some kernels into allowing downgrades.

Note that the FW itself does *NOT* handle downgrades, so, expect shit to break in fun and interesting ways if you don't factory reset after (or similarly ensure that you don't carry "newer" old dbs & settings around manually).

In the same vein, there's the big brass balls approach of flashing stuff manually in a diags shell.

[Sol Arkite]

Originally Posted by Barty

I was able to downgrade my Voyage from 5.13.3 to 5.10.3
Caveat: this may not work for other devices / firmware version.

Thanks for a recent verification that this method works. Well done. When I have time away from other duties and the mental wherewithal I’ll take a closer look at this method.

[hius07]

This feature (as usual update, not from diags) has been enabled/disabled periodically
https://www.mobileread.com/forums/sh...=288836&page=3
Haven't tried on the recent firmwares.

[6502]

Firstly, thank you to all those involved in PW4 jailbreak. I can now organise my PW4 the way Amazon should have enabled in the first place.

I could use Calibe Collections aftre jailbreakon my old Kindle but not with my new PW4 until the 5.13.3 jailbreak. However Amazon soon put an end to that with the 5.13.5 update despite my attempts to prevent this and no longer could I organise my collection.

Hoping that the original jailbreak was valid I have managed to install an earlier 5.10.0.2_factory.bin from an earlier jailbreak thread (https://www.mobileread.com/forums/sh...d.php?t=312489) which then allowed me to repeat the 5.13.5 jailbreak again.

I'm now running 5.11.2 with KUAL and librariansync. All I need now is a better way to avoid OTA updates.

[j.p.s]

Originally Posted by 6502

I'm now running 5.11.2 with KUAL and librariansync. All I need now is a better way to avoid OTA updates.

Have you considered this?
https://www.mobileread.com/forums/sh...3&postcount=25

Also there may be some less drastic ways for 5.11.x such as the update blocker directory, but I don't remember where that stops working.

[Bafik]

Hello everyone,

Recently bought a sage PW4, PQ94WIF, G0016V, came with 5.12.5

Followed the steps from the first page and jailbroke the device, but can't install the "customer" 5.10.1.3 or 5.10.3 - the device says that the update file is invalid

Browsed through the past pages but no one seemed to have a similar error. Tried to repeat the steps, and diags, factory and jailbreak steps went fine, but the same error again when trying to install a "customer firmware"

Would greatly appreciate your help!

[ilovejedd]

Originally Posted by Bafik

Recently bought a sage PW4, PQ94WIF, G0016V, came with 5.12.5

Followed the steps from the first page and jailbroke the device, but can't install the "customer" 5.10.1.3 or 5.10.3 - the device says that the update file is invalid

Browsed through the past pages but no one seemed to have a similar error. Tried to repeat the steps, and diags, factory and jailbreak steps went fine, but the same error again when trying to install a "customer firmware"

Iirc, the color PW4s were released later and require customer 5.11.x or newer. Can't remember the exact version they started being supported.

[Bafik]

5.11.2 worked, thank you!

[eddington]

Got it to work!
Haha screw you Amazon.
You don't get to sell me a $100+ device with minimal functionality and not expect me to jailbreak it.

[thoriki]

Hi, have one new pw4 with fw 5.12.4 in step 5 of this tutorial say download fw 5.10.1.3. with my fw (5.12.4) can use link of step 5 (fw 5.10.1.3) this downgrade my pw4 to can jb, or no is compatible with my fw and get brick ?

[ilovejedd]

We have a newer JB method that doesn't require downgrade and works with almost all models.

https://www.mobileread.com/forums/sh...d.php?t=338268

[mike745]

Hi,

can you help me?
PW4 with 5.10.2.
Where is it possible to download the 5.10.3?

Thanks

[mergen3107]

Originally Posted by mike745

Hi,

can you help me?
PW4 with 5.10.2.
Where is it possible to download the 5.10.3?

Thanks

From https://www.mobileread.com/forums/sh...d.php?t=338268

Use this link: https://s3.amazonaws.com/firmwaredow..._v2_5.10.3.bin