Installing KOReader

KOReader is a document viewer for E Ink devices. Supported formats include EPUB, PDF, DjVu, XPS, CBT, CBZ, FB2, PDB, TXT, HTML, RTF, CHM, DOC, MOBI and ZIP files.

Your Kindle must be jailbroken and have MRPI and KUAL installed to be able to run KOReader.

Determine your firmware version

Before proceeding, check your Kindle's firmware version by going to:

Home → Menu → Settings → Menu → Device Info

Different firmware versions require different KOReader packages

Download KOReader

Download KOReader from the official release page

Choose the correct package for your Kindle:

KOReader Packages:

kindle-legacy: K2, DX, K3 (and all variants)
kindle: K4, K5, PW1
kindlepw2: All newer models (PW2, KV, KT2, PW3, KOA, KT3, KOA2, PW4, KT4, KOA3, PW5, KS) running firmware =< 5.16.2.1.1
kindlehf: Any Kindle device running firmware >=5.16.3

Alternative Download Method

Firmware >=5.16.3:

Marek's KOReader Installer (nightly) Download and copy this scriptlet into the /documents folder on your Kindle, run it from your Library and it will automatically download and install KOReader.

This alternative method might not work for everyone.

Connect your Kindle to your computer

Plug your Kindle into your PC via USB cable

Wait for your computer to recognize the device

Make sure your Kindle appears as a storage device on your computer

Install KOReader

Unzip the downloaded file

Copy the extensions and koreader folders to the root directory of your Kindle

When prompted, confirm to merge or replace existing files

Disconnect and Launch

Safely eject and unplug your Kindle

Open KUAL (Kindle Unified Application Launcher)

Search for the KOReader menu entry and click on it

KOReader Launch Options

When launching KOReader, you may see three options:

Start KOReader: The designed way to start KOReader
Start KOReader (no framework): Temporarily "kills" the Kindle UI to allocate more resources to KOReader.
Start KOReader (ASAP): Skips a couple of checks and starts KOReader as soon as possible

Done

KOReader is now installed on your Kindle!

We recommend reading the extensive but very helpful guide for KOReader

KOReader currently does not support USBMS mode (USB transfer) and will only charge the device, if you want to transfer files you must exit KOReader to do so.

If KOReader appears in KUAL but doesn't work when clicked, delete both koreader folders, re-download koreader and make sure you're downloading the right package for your Kindle

Credits

• Written by Bucks, re-designed to Fluent Style with ntindle and adapted from the official KOReader Github installation page