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Old 09-23-2026, 11:44 AM   #1
katadelos
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Device: K5, KT, KT2, KT3, KT4, KV, PW2, PW3, PW4, PW5
Native EPUB support for Kindle

This package adds experimental native EPUB support for the following devices:
  • K4-4.1.4
  • KT1-5.3.7.3
  • PW1-5.6.1.1
  • PW2-5.12.2.2
  • KT2-5.12.2.2
  • KV-5.13.6
  • PW3-5.16.2.1.1
  • KOA1-5.16.2.1.1
  • KT3-5.16.2.1.1
  • KOA2-5.16.2.1.1
  • PW4-5.18.1.1.1
  • KT4-5.18.1.1.1
  • KOA3-5.18.2.1.1

Your device needs to have the specific firmware version listed installed for the package to work.

EPUBs should be placed in the usual /mnt/us/documents directory.

Native EPUB support is possible on later devices but it is not being released at present due to the need to build a new version against each new firmware.

This package has been tested against all device/firmware combos in the emulator and on live K4, KT3 and KT4 devices without issues.

That said, the usual risks apply - don't install this if you don't have a clear idea of how you can recover your device if anything goes wrong.

Source code to be released soon after I clean it up a bit.
Attached Files
File Type: zip kindle-epub-mrpi-35854726833.zip (2.86 MB, 92 views)
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Old 09-24-2026, 01:36 PM   #2
Neposeda
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Interesting theme. Can you create package for PW6-5.18.6?
Perhaps there is no need to use exact firmware versions, but only those that have internal changes (like webreader or libs)?
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Old 09-26-2026, 04:24 PM   #3
shamanNS
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Tested on my old PW1 with firmware 5.6.1.1. It works. I was pleasantly surprised when I saw that indexing of epub book's text content was successfully done and that global search result list content from that test epub book.

My Kindle did have one forced reboot happen while re-opening that single epub book I've added for testing. Didn't find if and where your "handler" binaries log errors.
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Old 10-05-2026, 09:06 PM   #4
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Tested on a KOA2 running 5.16.2.1.1 and it seems to be working fine. It was a bit surreal watching all the EPUB content that I normally only saw in the KOReader file manager populate into the stock UI.

Last edited by Frogm4n; 10-05-2026 at 09:12 PM.
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Old 10-06-2026, 02:36 PM   #5
DXG FAN
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Tested on Kindle 4-4.1.4 and working fine.

Would it be possible to create a package for a DXG running 2.5.8 please?

This is my first post on this forum, so I hope I have done it correctly!
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Old 10-06-2026, 04:18 PM   #6
JSWolf
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Quote:
Originally Posted by DXG FAN View Post
Tested on Kindle 4-4.1.4 and working fine.

Would it be possible to create a package for a DXG running 2.5.8 please?

This is my first post on this forum, so I hope I have done it correctly!
I would doubt it since the DXG is rather limited. It basically a K2 with a larger screen.
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Old 10-07-2026, 02:05 AM   #7
Doitsu
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The package failed to install on my PW2-5.12.2.2

The error message was:

Code:
Package script failed (1). Moving on :( ...
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Old 10-19-2026, 11:01 AM   #8
DXG FAN
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Quote:
Originally Posted by katadelos View Post
This package adds experimental native EPUB support for the following devices:
  • K4-4.1.4
  • KT1-5.3.7.3
  • PW1-5.6.1.1
  • PW2-5.12.2.2
  • KT2-5.12.2.2
  • KV-5.13.6
  • PW3-5.16.2.1.1
  • KOA1-5.16.2.1.1
  • KT3-5.16.2.1.1
  • KOA2-5.16.2.1.1
  • PW4-5.18.1.1.1
  • KT4-5.18.1.1.1
  • KOA3-5.18.2.1.1

Your device needs to have the specific firmware version listed installed for the package to work.

EPUBs should be placed in the usual /mnt/us/documents directory.

Native EPUB support is possible on later devices but it is not being released at present due to the need to build a new version against each new firmware.

This package has been tested against all device/firmware combos in the emulator and on live K4, KT3 and KT4 devices without issues.

That said, the usual risks apply - don't install this if you don't have a clear idea of how you can recover your device if anything goes wrong.

Source code to be released soon after I clean it up a bit.
I know that you have said that you will release the source code after you have cleaned it up. Do you think I would be able to use that to make something that would work on a Kindle DXG or perhaps a Kindle Keyboard model please?
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