4 Must-Have Plugins to Install After Jailbreaking Kindle

four neccessary plugins to install after jailbreak kindleBefore reading this post, please make sure your Kindle is already jailbroken.

To install those hacking plugins is the top goal for us to jailbreak Kindle, in this post I list 4 “must-have” plugins for jailbroken Kindle.

These plugins suit Kindle Touch / PW1 / PW2 / KT2 / KV / PW3 / KO / KT3. And please jailbreak your Kindle before installing the plugins.

KUAL

KUAL(Kindle Unified Application Launcher) is a plugin launcher. By installing KUAL, you can download or create your own Kindle plugin and launch it by KUAL. KOReader is one of the most famous plugin which must be launched by KUAL.

Install steps:

  1. Connect Kindle to computer with USB
  2. Download “KUAL-v2.7.zip” and unzip it
  3. If your Kindle is running firmware version 5.0 and later, please copy the KUAL-KDK-2.0.azw2 file into Kindle’s documents folder.
  4. If your Kindle is running firmware version lower than 5.0, please copy the KUAL-KDK-1.0.azw2 file into Kindle’s documents path.
  5. Safely eject Kindle from computer, then you can see Kindle Launcher.

 

For 8th generation Kindle (Kindle Oasis and Kindle Touch 3), you need to follow these steps:

  1. Install MRPI (MR Package Installer)
  2. Connect Kindle to computer with USB
  3. Download “KUAL-v2.7.zip” and unzip it
  4. Copy the Update_KUALBooklet_v*_install.bin file into Kindle’s mrpackages folder.
  5. Safely eject Kindle from computer, go to Kindle’s home screen.
  6. Open Kindle’s search bar, input “;log mrpi” (without quote marks), and wait for MRPI to install KUAL.
  7. When everything finishes, you will see KUAL in your library.

MobileRead Package Installer (MRPI)

Recent Kindle firmware versions don’t allow users to install plugins with .bin files, so MRPI born. Now we can install Kindle plugins with MRPI.

kual-mrinstaller-1.6.N.zip download

Install steps:

  1. Connect Kindle to computer with USB
  2. Download “kual-mrinstaller-1.6.N.zip” and unzip it
  3. Copy the “extensions” and “mrpackages” folders into Kindle’s root path
  4. Safely eject Kindle from computer, you will find MRPI in KUAL’s Helper menu

Koreader

Koreader helps your read EPUB books on Kindle, that’s many Kindle owners’ wish for years. Another important feature is, it will re-format a PDF book (even for scanned PDF file). The re-formatted PDF book will suit your Kindle screen pretty well, with Koreader you needn’t to zoom-in and zoom-out on PDF files anymore.

kindle-kpvbooklet-0.6.4.zip download
koreader-kindle-arm-linux-gnueabi-v2015.11-stable.zip

Install steps:

  1. Make sure you’ve installed KUAL and MRPI
  2. Connect Kindle to computer with USB
  3. Download “kindle-kpvbooklet-0.6.4.zip” and unzip it
  4. Copy the “update_kpvbooklet_xxx_install.bin” file into Kindle’s “mrpackages” folder.
  5. Safely eject Kindle from computer
  6. Go to Kindle Launcher, press “Helper” –> “Install MR Packages”
  7. Kpvbooklet will be installed and Kindle will reboot.
  8. Download “koreader-kindle-arm-linux-gnueabi-v2015.11-533-g1d2150c.zip” and unzip it, you will get two folders: “extensions” and “koreader”
  9. Copy all the files from unzipped “extensions” folder into Kindle’s “extensions” folder.
  10. Copy “koreader” folder to Kindle’s root path.
  11. Then you can launch Koreader from KUAL

ScreenSavers Hack

Notice: The ScreenSavers hack won’t work on Kindle with special offers. This is Amazon’s bottom line, we pay less for the special offer edition, if we can bypass it by jailbreaking, Amazon would block all the doors to Kindle jailbreak.

By default we can’t set Kindle’s screensaver as we want, instead Kindle displays some built-in images or advertisements for Kindle books. By installing the ScreenSavers Hack plugin, you can freely change your Kindle’s screensaver image.

Notice this plugin onlu supports Kindle Touch/PW1/PW2/KT2/KV/PW3/KOA/KT3

kindle-linkss-0.24.N-r13390.tar.xz download

Install steps:

  1. Make sure you’ve installed KUAL and MRPI
  2. Connect Kindle to computer with USB
  3. Download “kindle-linkss-0.24.N-r13390.tar.xz” and unzip it, copy the “Update_linkss_0.24.N_install_pw2_kt2_kv_pw3.bin” file into Kindle’s “mrpackages” folder.
  4. If you are using KPW1 or Kindle Touch, please copy “Update_linkss_0.24.N_install_touch_pw.bin” file.
  5. Safely eject Kindle from computer, open Kindle Launcher, press “Helper” –> “Install MR Packages”.
  6. Screensavers hack will be installed and Kindle will reboot.
  7. Connect Kindle to comptuer again, there will be a folder called “linkss” in Kindle’s root path.
  8. Put the images into “linkss” folder, they will be your Kindle’s new screensavers.

Notice:

You need to name these images as bg_ss00.png、bg_ss01.png … bg_ss9.png

And these images should be saved as specific format and size.

  • Touch / KT2 / KT3: PNG, 600*800
  • KPW / KPW2: PNG, 758*1024
  • KV / KPW3 / KO: PNG, 1072*1448

 

There are some other popular plugins like Font Hack plugin, in my private point view, I don’t recommend you install it. Amazon has already provided many wonderful fonts and they are keeping offering more new fonts. Install the font hack plugin is also more complex than any of above.

Other plugins like SSH, USB Network, etc.. They are way more complex and mainly aim to developers, so I also don’t list them as “must-have”.

All the plugins are from mobileread forum, you can get more plugins on this thread
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  • M

    can I install on PW3 this plugin ?(kual and koreader)

    • M

      I can install Kual and koreader on kindle paperwhite 3
      but I have a new problem with koreader.
      I can’t use orginal kindle paperwhite PDF Viewer and kindle open PDF files with koreader automatically 🙁
      can I use original PDF viewer by default?

  • Rob

    I ran into a problem with the instructions above for installing
    KUAL and MRPI. It has at step 6, “Go
    to Kindle Launcher, press “Helper” –>
    “Install MR Packages” – I’m trying this on the Kindle Oasis, and don’t
    see/can’t find these inputs on the kindle menus…am I missing
    something? Thanks…

  • You have been written great tut here, but at the last part you have not shown how to set cover like Last, Random in the app. I tried, and it show failed.

  • master foo da universe

    The Kual file should be in the documents directory, not the root path.

    • Admin

      Thanks a lot, now it’s correct.

  • warpig

    everything works great after installing everything except images in books now come up as imagine missing.Has anyone else had this problem or know a possible fix?

    • Admin

      The book is bought from Amazon or download from internet? You read it with Kindle’s default reader or KOreader?

      • warpig

        both brought and downloaded.iv just been reading with the kindle default reader

  • Alex

    Hi thanks for all the explanantion. I works but I unable to read the epub book. I see the icon book with the epub tag in it, but when i tryed to open it. I have a white screen a few seconds before returning a the welcome page. Have you got a idea to resolve that ? I have a kindle basic 8th

    • Admin

      Did you open the EPUB book with KOreader?

      • Alex

        I suppose but I am not sure. I run KUAL app, then KOReader, then “Start the filemanager” and it go back to the Welcome page and try to open the epub ebook without success 🙁

        • Admin

          How large is the EPUB file?

          • Alex

            i ve tried differents , 358 ko ; 346 ko ; 1,4 Mo and 1,5 Mo

          • Admin

            As far as I can see, they are just normal EPUB books, they should be opened by KOreader normally. However I am not the developer of KOreader, for this issue I suggest you feedback at the developer’s thread: http://www.mobileread.com/forums/showthread.php?t=180113

          • Alex

            Thanks for your time

          • Admin

            I’ve updated Koreader’s install pack, pleaes download the file “koreader-kindle-arm-linux-gnueabi-v2015.11-stable” and install it to your Kindle. Maybe the new install pack solves the problem.

          • Alex

            thanks i will try this new version on next weekend, my KT3 still has the special offer ads, maybe it can be the things that avoid Koreader to work ?

          • Admin

            As far as I know, the special offer has nothing to do with Koreader.

  • Valerio

    Thank you very much, everything went good with a PW3! But i have only one question, after i’ve installed the screen saver hack, i continue to see only the special offers. What’s the way to correctly see the screen saver i put in? Thank you again!

    • Admin

      If you subscribed to the special offers, the screensavers hack won’t work. It’s Amazon’s bottom line. If the hack can cancel special offers (ads) without any charge, then Amazon would do everything they can to stop Kindle jailbreaking.

  • newkindleuser

    I just pu my hand on a kindle 8 (kt3), I managed to jailbreak it, install KUAL and MRPI easily, they work, I installed Koreader too, it shows up in KUAL, but when i touch any of the filemanager variants, it wouldn’t open anything… What should i do?

    • Admin

      I’ve updated Koreader’s install pack, pleaes download the file “koreader-kindle-arm-linux-gnueabi-v2015.11-stable” and install it to your Kindle.

  • Nina

    Thank you so much for the detailed description. I have followed all your instructions and it has worked wonderfully on my KV except for the screensaver hack, which I did the jailbreak in the first place for. Amazon only offers a firmware update to 5.8.2.1. Do you think it’s because of that? I can’t find 5.8.2.. Instead of the custom screensaver it shows an ad.

    • Admin

      If you subscribed to the special offers, the screensavers hack won’t work. It’s Amazon’s bottom line. If the hack can cancel special offers (ads) without any charge, then Amazon would do everything they can to stop Kindle jailbreaking.

      • Nina

        Oh I see, I wasn’t aware that was the case, but it makes sense. Thanks for your very prompt response! Will have to purchase special offers and then use custom screen savers. Thanks again!

  • Tuấn Long Nguyễn

    Hello. After jailbreaked, my kindle is now 5.7.4 version. But when i follow your steps, I can’t install KUAL and KOREADER. In can’t find menu HELPER on my kindle. Please help me. My Kindle is PW 2015, no 3G. Thanks so much

    • Phan Nguyen Khoi

      it happened to me once. I forgot to update to the new firmware after jailbroken the kindle. These tweaks only work on the latest firmware. Try to redo every steps over again but this time update the firmware to see if it works. It worked for me

  • Alberto Rodríguez Concepción

    Thank you very much for the detailed tutorial.
    I have installed KOreader, it is showing in KUAL, however whenever I try to open a PDF document (either directly or from KOreader), the screen will flash and the document won´t open.

    I am using a Kindle touch gen 8 with the latest firmware:
    I saw people experiencing the same issues in the comments, all of them using a Kindle 8.
    Could it be that either KOreader or Kpvbooklet is not compatible with the Kindle 8 or with the new firmware?
    Any suggestions?

    • zero

      it’s same problem.
      me too.
      i’m using kindle oasis. please help.

      • Faizan Shaikh

        same problem with me. Can anyone help? Thanks.

  • Angel Delgado

    PW3 here and whenever I try to open the KUAL launcher it says “this device is not authorized as a test kindle by the developer of this item. please contact the developer

    • Eivind Drivdal

      You need to jailbreak your kindle before KUAL will work.

  • fash

    Issues resolved ?

    Months ago no answer from dev, mmh I’ve doubt on turnin on jailbreak

  • Joe

    I get the message as well Kindle Oasis version 5.8.5.0.2 Kual will not open and the screensavers are gone

  • Francesco Arciello

    Thank you for the tutorial. I have a doubt. with Koreader can i read epub with DRM protection that I have bought from ebook stores?

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