Tutorial Brand new PaperWhite 4 (2018) factory image JailBreaking

[elesko]

Originally Posted by ilovejedd

@elesko
Yeah, that should be jailbreakable. You need to use factory firmware 5.10.0.2 with md5sum be5cc7a210bfa4fc81d4a03e62647714 from the first post.

Ignore the usbnet comment. The ;installHtml method is easier to use. Note, you have to extract the K5 jailbreak on your PC first (on Windows, use 7-zip). The only file you need to copy is main-htmlviewer.tar.gz to the root of the Kindle (well, internally it's /mnt/us but from Windows or Linux point of view X: or /mnt/media/Kindle).

After that, copy and install the hotfix. Once that's done, you can update to consumer firmware (currently 5.10.1.2).

Remember, you need coplate's KUAL build for the PW4 (link somewhere in this thread). The KUAL on NiLuJe Snapshot thread's first post just displays blank.

that was quite helpful, thanks. its not easy to get into modding a new device without having a knowledge base about the product.

it seems like kual is working, now ill try to put some applications on it an test if that works. is there a way to transfer files over wifi instead of constantly plugging in and out the device?

[j.p.s]

Originally Posted by elesko

that was quite helpful, thanks. its not easy to get into modding a new device without having a knowledge base about the product.

it seems like kual is working, now ill try to put some applications on it an test if that works. is there a way to transfer files over wifi instead of constantly plugging in and out the device?

Once you get USBnet working and enable ssh over wifi you can copy files with scp.

[ilovejedd]

Originally Posted by elesko

that was quite helpful, thanks. its not easy to get into modding a new device without having a knowledge base about the product.

I do know it seems kinda scary when you're just starting out. I expect the reason the instructions were not in depth is as the first post states, the steps are exactly the same as on the wiki: https://wiki.mobileread.com/wiki/5_x_Jailbreak

It's just the files that you need to use that are different:

• PW4 factory firmware
• main-htmlviewer.tar.gz (although I suspect this one doesn't really change)
• hotfix
• probably add-ins (KUAL, mrpi, etc)

[NiLuJe]

@frostschutz: Come to the Dark Side, we have cookies! (and obfuscated Java ).

[elesko]

Originally Posted by j.p.s

Once you get USBnet working and enable ssh over wifi you can copy files with scp.

i got it working when i first read through the readme of usbnet it looked pretty scary.

in the end all it took was me putting the proper drivers onto my pc and figuring out my kindles ip address and make it fix and then find out my kindle password. no need for putty or scp. i used filezilla instead.

for anyone curious where the visible standard root folder of your kindle is, its in /mnt/base-us.

i can write up a proper how-to if someone asks for it.

thanks for all your help again guys! now i can start finally use the kindle as i intended to - read books to learn more about programming and maybe one day create something for the kindle

edit:

one hopefully last question though, do i need to remove the folder i created to stop the kindle from updating to be able to update again? i jailbreaked and put all the fixes in so i should be safe to update. should i remove the folder again? do i keep my files on the kindle when i update?

[ilovejedd]

Originally Posted by elesko

one hopefully last question though, do i need to remove the folder i created to stop the kindle from updating to be able to update again? i jailbreaked and put all the fixes in so i should be safe to update. should i remove the folder again? do i keep my files on the kindle when i update?

Leave it unless you want the Kindle to automatically update without your knowledge.

The update.bin.tmp.partial folder only blocks OTA update firmware downloads (that's the file name used while downloading). The folder doesn't prevent manual firmware updates (download firmware to PC and copy update.bin to Kindle).

[j.p.s]

Originally Posted by elesko

one hopefully last question though, do i need to remove the folder i created to stop the kindle from updating to be able to update again? i jailbreaked and put all the fixes in so i should be safe to update. should i remove the folder again? do i keep my files on the kindle when i update?

You never need to remove that folder.

If you want to update, just follow Amazon's directions for manually updating your kindle.

Lately, it is probably not a good idea to be the first to update to the latest firmware version unless you enjoy the bleeding on the bleeding edge.

[knc1]

Originally Posted by elesko

- - - - -
i can write up a proper how-to if someone asks for it.
- - - - - -

Been there, wrote that.

See the little colored title prefix tags, such as: "tutorial" ?
We once had between two and three years worth of threads prefixed.

All of which disappeared one day when one of the senior moderators hit the wrong button.


But if you search by my nickname and "ssh" in the title you should find a series of tutorials on the subject.
Note: you only need to find one, I linked them together both forward and reverse.

Try the "Advanced Search" tool.
When logged in, top right corner, leave "search text" block empty, click "search".
That will bring up the "Advanced Search" tool.

Also;
The "Amazon/Linux" that these Kindles run, although having implementation differences due to being an embedded system, operate 99.99% the same as your disktop Linux. (Plus, this forum has the policy of only using/posting "Open Source" tools and applications.)
Or, your Linux Live CD (DVD), if you don't have a real Linux installation.

[frostschutz]

My Paperweight 4 was delivered already even though it was announced for a much later date. Came with 5.10.0.1 firmware. Won't have time to really play with it until next week...

Originally Posted by knc1

The PW4 has an accessible serial port, so it is always jail breakable.

Is anyone using the serial port? Are there any guides for the PW4 specifically?

I thought someone posted a picture of it but I can't find it anymore...

All I found instead was this teardown vid on youtube and I think I can see the serial port near the battery but it's hard to tell since they turned it into a horror movie and I couldn't sleep all night after watching it it's a bit blurry...

Also need to locate a vcc source...

[kript96]

You don't need it, just keep it to 5.10.0.1 until you have free time to do the jb

[JimmyR]

Originally Posted by frostschutz

Is anyone using the serial port? Are there any guides for the PW4 specifically?

I thought someone posted a picture of it but I can't find it anymore...

https://www.mobileread.com/forums/sh....php?p=3773220

[frostschutz]

Originally Posted by kript96

You don't need it

The jailbreak works fine. Thanks!

I'd like to access the serial port regardless, for peace of mind.

When I brick my Kobo, I can simply remove the internal MicroSD card. No such luck for the Kindle. And years ago I managed to brick my StoryHD, or rather it bricked itself on firmware update, and I had to buy a new one... that's something I'd like to avoid, but sometimes bricks just happen.

(I guess this is the wrong thread for asking about PW4 serial port, then. Sorry)

@JimmyR: Thanks!

[knc1]

Originally Posted by frostschutz

- - - - -
Is anyone using the serial port?
Are there any guides for the PW4 specifically?
- - - - -

If so, they haven't posted about it here.

The major change is that related to the file system layout.
The KOA2 and PW4 use a file system layout different than previously.

Also, they are no longer dual-boot devices, they are "dual mode" devices.
I.E: the "Diags" system is memory resident now.

(And they use the Android boot routines rather than U-Boot.)

- - - - -

Since the KOA2, like the KOA, does not have a documented serial port ...
The PW4 is the first device which could be the base of updated directions.

- - - - - -

As suggested above, just prevent the device from updating.
(Put the blocking directory on the user visible file system, keep it away from Wifi, ...)

You do not want to be the first one to jail break over the serial port while re-writing the directions.

[elusznik]

Okay, so in order to install the hotfix I need to have MRPI installed, and in order to install I have to have KUAL installed? So the order in which I should do things is installing factory->installing jailbreak->installing KUAL->installing MRPI->installing hotfix?

[NiLuJe]

@elusznik: No, the hotfix (and only the hotfix, which explains the need for MRPI for everything else) is designed to be installed via "Update Your Kindle" (UYK) in the Settings menu.

The Hotfix also allows you to run MRPI without KUAL, via the ;log mrpi search string, which allows you to actually install KUAL on these devices (as it's no longer a simple Kindlet).

TL;DR: Factory Image -> Factory JB -> Hotfix -> MRPI -> KUAL Booklet w/ Coplate's patch -> Everything else