Tutorial Brand new PaperWhite 4 (2018) factory image JailBreaking

[knc1]

After a successful factory image jailbreak of 5.10.0.2 I have yet to update to a newer version. However, I found my battery life poor.

(No shit)

You must, repeat MUST, install a consumer-use firmware build, even if it is the same firmware version.

Nothing here is intended to be run on a factory-use firmware build, other than the jail break vector.

In fact, the only thing which is intended to run on a factory-use firmware build are the Q.A. routines it includes.
That is, do not be so surprised that it does not run as expected for a consumer-use firmware, since it is NOT a consumer-use firmware.

Eliminate the PEBKAC from your observations and report back on any changes from what you have observed above.

[arooni]

Originally Posted by Branch Delay

Looks like Amazon is finally going to fix the ;installHtml issue. Over the last few days, one of my articles has been getting a lot of hits from lab126. (hi SBR-6729!) (Note to Amazon, might want to hide your referrers from your lab126 domain.)

Guessing they'll fix both vectors soon, finally wiping these in the factory as well as updating busybox etc.

Sort of weird it lasted this long. I assumed they were tacitly supporting the community by leaving that in, but I'm now thinking it was just lack of time.

At least the Kobos are finally on par.

All right, good luck everyone! Grab a jail-breakable Kindle before yet another hole closes.

I thought kobos were much more hackable than kindle devices. Or perhaps I didn't understand your implication.

---

Also, are the above posts saying that the blocking update folder update.partial (whatever that is called) and the paperwhite trying to phone home so often causes the lower battery life?

[ilovejedd]

Originally Posted by Branch Delay

All right, good luck everyone! Grab a jail-breakable Kindle before yet another hole closes.

Now you're making regret not getting (yet) another PW4 during the MLK day sale.

[arooni]

During normal restart, I ended up with the kindle tree screen.

I have jailbroken the kindle and updated to 5.10.2. Everything was working fine and have previously successfully restarted it.

I have held down the power button for 40 seconds and the screen kinda flashes but then doesn't otherwise do anything.

Hope I didn't accidentally brick it :\ .. and trying not to panic

... only thing i can think i may have changed was setting up usb networking to launch on startup. but of course i had the device in airplane mode before restarting :\

battery was at 90% before the restart.

and right now its plugged in to the wall outlet and the green light (full charge) charge indicator is on. but still seeing the guy under the tree reading the kindle.

-----

update ; finally seems to be booting. man that gave me quite a scare. anything i should change/do differently to prevent this from happening? ... never restart it?

[knc1]

Remove the network "start automatically" control until you figure out what is happening.

Note:
The above is a paraphrase of the warning in the release post of USB networking and in the included readme materials.

[Trigate]

Originally Posted by knc1

(No shit)

You must, repeat MUST, install a consumer-use firmware build, even if it is the same firmware version.

Nothing here is intended to be run on a factory-use firmware build, other than the jail break vector.

Just to check if I got that right. I jailbroke my Kindle PW4 with the stuff mentioned in the starting post and it boots up and everything seems to be fine. But if I got your right, I need to update my Kindle to the same Version (5.10.0.2) now to have a consumer-use firmware and not the factory firmware I had from the get-go and that is linked in the starting post?

[ilovejedd]

Originally Posted by Trigate

Just to check if I got that right. I jailbroke my Kindle PW4 with the stuff mentioned in the starting post and it boots up and everything seems to be fine. But if I got your right, I need to update my Kindle to the same Version (5.10.0.2) now to have a consumer-use firmware and not the factory firmware I had from the get-go and that is linked in the starting post?

If there had been a consumer update file available for 5.10.0.2 (would've been ~200MB), then yes, you would install that.

Since that specific version is only available pre-installed on Kindles from the factory, in this case, you'd need to install at least 5.10.1.2. I think only that and 5.10.2 have been released so far for the PW4.

[arooni]

Originally Posted by knc1

Remove the network "start automatically" control until you figure out what is happening.

Note:
The above is a paraphrase of the warning in the release post of USB networking and in the included readme materials.

I disabled this, and yet it seems the only way the kindle will complete the restart is if it's plugged in to a power source. Battery is above 80%. When I restart I get the boy under the tree. But as soon as I plug in the USB cable the restart looks like it finishes.

I tried to uninstall USBNetwork via KUAL and even after a restart its still there. I also disabled it and if i click usbnetworkstatus i see: "N * USBNetwork: disabled (usbms, sshd up?) * " Also tried disabling the font hack too from KUAL.

I guess the solution is to not restart, and at least restart seems to finish plugged in, but I'd say the current state isn't ideal.

Are there logs somewhere that I can see why reboot is hanging?


====
update : nevermind; it does finish on its own; just need to allow for 4-5 minutes for a reboot. still seems long; but then again there are lot of magical things running on kindle that it didn't have running before thanks to you folks

[mergen3107]

Do you have your indexing of books finished?
How many books do you have on Kindle?

[knc1]

You really should not try to restart the device with the USB cable connected to a PC.
That can force the Kindle system to do some really crazy things.
At least wait for the restart to complete.

Note: A "normal" restart can take several days, since the start-up sequence includes file system checks and auto-repairs as required.
Repairing the file system on an eMMC device can be VERY slow.

[arooni]

Originally Posted by mergen3107

Do you have your indexing of books finished?
How many books do you have on Kindle?

indexing is done. i have 2.49 gb free on a 8gb kindle paperwhite 4. i think i'll likely clear out a bunch of books though as i am liking reading in koreader more and more and i'm not sure what all the books are already on there

[arooni]

Originally Posted by knc1

You really should not try to restart the device with the USB cable connected to a PC.
That can force the Kindle system to do some really crazy things.
At least wait for the restart to complete.

Note: A "normal" restart can take several days, since the start-up sequence includes file system checks and auto-repairs as required.
Repairing the file system on an eMMC device can be VERY slow.

That's good to know. Sounds like it would be stupid to try to interrupt the startup process. I was restarting it plugged into a wall charger (not connected to a computer).

[knc1]

Originally Posted by arooni

That's good to know. Sounds like it would be stupid to try to interrupt the startup process. I was restarting it plugged into a wall charger (not connected to a computer).

The system (once running) can tell the difference.
Once the system is full up, then connecting a wall charger will not cause it to try and export the user storage partition over the USB cable.

What it will do, while still in the start-up process is too hard to guess.

For instance, we do know that the early part of the boot process will briefly export the user storage partition as part of loading the driver(s).

[mcfury]

Hi there
just received PW4 8Gb with SO G00PP fw 5.10.0.2 and I need JB now, because if it updates the firmware it will be too late. WiFi not conneted.
Now question, for the moment I don't need any other hacks therefore no need install mrpi/kual/something else, right?
Do my way finished after install hotfix/bridge and manual update to 5.10.1.2 for example?

[knc1]

Originally Posted by mcfury

Hi there
just received PW4 8Gb with SO G00PP fw 5.10.0.2 and I need JB now, because if it updates the firmware it will be too late. WiFi not conneted.
Now question, for the moment I don't need any other hacks therefore no need install mrpi/kual/something else, right?
Do my way finished after install hotfix/bridge and manual update to 5.10.1.2 for example?

Correct.

1) The jail break is, well, the jail break.

2) The (increasingly more wrongly named) "hotfix" is what makes the jail break (and itself) viral across Amazon updates.
(It installs using UYK - only requires the jb to be installed)

Later:
3) MrPI (does not require KUAL, since it can be run by a search bar command)

4) Everything / Anything else can wait.

The "hotfix" was correctly named when it was created, over time it has had features added and functions improved so that the original name is becoming more than a bit of an understatement.