> For the complete documentation index, see [llms.txt](https://kindlemodding.gitbook.io/kindlemodding/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kindlemodding.gitbook.io/kindlemodding/post-jailbreak/installing-kual-mrpi.md).

# Installing KUAL/MRPI

This page will guide you through setting up KUAL (Kindle Unified Application Launcher) and MRPI (MobileRead Package Installer) to install and use homebrew on your Kindle.

Info taken from the original thread: <https://www.mobileread.com/forums/showthread.php?t=320564>

Note that KUAL (Booklet) and MRPI depends on each other, so you will have to install both of them at the same time.

## Prerequisites:

* KUAL and MRPI, download them from [NiLuJe's snapshot thread](https://www.mobileread.com/forums/showthread.php?t=225030).
  * There are multiple variants of KUAL as it is designed to run across the *entire* range of Kindles. For which variants to pick for your Kindle:
    * For FW 5.9 and newer, use **KUAL Booklet (coplate)** variant.
    * For FW 5.8.x and older, use **KUAL Booklet** varian&#x74;**.**

## Installation for KUAL Booklet variants:

1. Connect your Kindle to your PC.
2. Extract MRPI's `extensions` and `mrpackages` folder to Kindle's visible storage's root. This is where the `document` folder resides.
3. Drop the KUAL files in.
   * Using **KUAL Booklet** or **KUAL Booklet (coplate)**, drop `KUALBooklet_*_install.bin` into `mrpackages` folder.
     * To identify which is which, **Booklet (coplate)** variant will have a commit string in its version number in the file name, such as `KUALBooklet_ff4134d_install.bin`, while **Booklet** will have the version number in its file name, such as `KUALBooklet_v2.7.29_install.bin`.
4. (Optional) Drop any other extensions into the `extensions` folder, and update bins into `mrpackages` folder.
5. Once everything is in place, eject/disconnect your Kindle, then enter `;log mrpi` to start MRPI. `Hush, little baby...` should pop up at the bottom half of the screen.
   * If nothing happens, check and make sure you've placed everything in place correctly.
   * If for whatever reason `;log` doesn't exist, You can still install by dropping `Update_KUALBooklet_hotfix_*_install.bin` into Kindle's visible storage's root, then go into `Settings` > `Update Your Kindle` to install it.
     * Obviously this won't work if your Kindle firmware is too new, and the package hasn't been updated, in which case you'll have to wait for an update.&#x20;

## Once you've completed the steps, feel free to head onto [Disable OTA Updates](/kindlemodding/post-jailbreak/optional-disable-ota-updates-on-5.11+.md) for 5.11+ (optional, but recommended), or head to [Installing KOReader](/kindlemodding/post-jailbreak/optional-koreader.md) (optional).