Answers.Body: <p><a href="https://github.com/koreader/koreader/wiki" rel="nofollow noreferrer">KOReader</a> is an ereading software available for several devices and platforms. Quoted from <a href="https://wiki.mobileread.com/wiki/KOReader" rel="nofollow noreferrer">Mobileread wiki</a>:</p>
  
  <blockquote>
    <p>KOReader is a document viewer for Linux based E Ink devices. Currently
    there are versions for Kindle, Kobo, PocketBook, and Android devices.</p>
  </blockquote>
  
  <p>The installation procedure depends on the device. Support forums are available on <a href="https://www.mobileread.com/forums/forumdisplay.php?f=276" rel="nofollow noreferrer">Mobileread</a>.</p>
  
  <p><a href="https://i.sstatic.net/r2HY0.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/r2HY0.png" alt="enter image description here"></a></p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2017-02-15T18:50:41.973Z
Answers.LastActivityDate: 2017-02-15T18:50:41.973Z
Answers.UserDisplayName: Sekhemty
Answers.Body: <p>It depends on specific device and its architecture.</p>
  
  <p>Those that are built on top of Android, typically tend to get AOSP ports, e.g. <a href="https://www.google.com/search?q=aosp%20nook&amp;ie=utf-8&amp;oe=utf-8&amp;aq=t&amp;rls=org.mozilla%3aen-US%3aofficial&amp;client=firefox-a&amp;channel=fflb">Nook</a> (here's <a href="http://www.alexroddie.com/2013/06/android-on-nook-simple-touch-part-2.html">Simple Touch instructions</a>), or <a href="https://www.google.com/search?q=aosp%20kindle%20fire&amp;ie=utf-8&amp;oe=utf-8&amp;aq=t&amp;rls=org.mozilla%3aen-US%3aofficia">Kindles</a> - the latter even has CyanogenMod ROM. </p>
  
  <p><a href="https://www.google.com/search?q=Sony%20PRS-T1%20android&amp;rls=org.mozilla%3aen-US%3aofficial">Sony PRST 1</a> was hacked to expose <a href="http://www.mobileread.com/forums/showthread.php?t=184646">full underlying rooted Android</a> but I'm not sure if AOSP based ROM is available for it - <a href="http://sonyfmngr.sourceforge.net/prsT1.htm">this might be it</a>.</p>
  
  <p>I'm not sure if there are any non-Android-based mainstream eInk readers - most of the ones I heard of (which is not a lot) seem to be Android under the covers and thus can be opened up (e.g. see <a href="http://www.geeky-gadgets.com/kobo-glo-e-reader-transformed-into-full-android-tablet-by-hackers-05-11-2013/">Kobe Glo</a>).</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2013-12-21T20:21:49.223Z
Answers.Text: But... neither the Nook nor the Kindle Fire is an e-ink device as *the question specifically asked*.
Answers.UserDisplayName: Nathan Osman
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2013-12-21T21:28:17.680Z
Answers.Text: @NathanOsman - http://www.barnesandnoble.com/p/nook-simple-touch-barnes-noble/1102344735. I thought that was e-ink? I'm unsure of the varieties of Kindles, but was under impression that they were all Android-based. I'll check.
Answers.UserDisplayName: DVK
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2013-12-21T21:29:19.780Z
Answers.Text: @NathanOsman - Nook, I can confirm. This article on rooting it confirms e-Ink: http://www.alexroddie.com/2013/06/android-on-nook-simple-touch-part-2.html
Answers.UserDisplayName: DVK
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2013-12-20T22:10:30.430Z
Answers.LastActivityDate: 2013-12-21T21:29:44.750Z
Answers.LastEditDate: 2013-12-21T21:29:44.750Z
Answers.UserDisplayName: DVK
Answers.Body: <p>There is a project, called <a href="https://code.google.com/p/prs-plus/" rel="nofollow">PRS+</a>, for older Sony PRS devices (PRS-300, PRS-505, PRS-600, PRS-350, PRS-650, PRS-950).</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-01-09T09:18:54.660Z
Answers.Text: Link broken, loos like this is an archive of the project: https://code.google.com/archive/p/prs-plus/
Answers.UserDisplayName: Ben Page
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2013-12-22T10:30:47.300Z
Answers.LastActivityDate: 2013-12-22T10:30:47.300Z
Answers.UserDisplayName: palacsint
Answers.Body: <p>Look to inactive project <a href="http://morgue.openinkpot.org/" rel="nofollow">OpenInkpot</a> (<a href="http://ru.wikipedia.org/wiki/OpenInkpot" rel="nofollow">2</a>, <a href="http://wiki.mobileread.com/wiki/Openinkpot" rel="nofollow">3</a>).</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-05-06T12:33:33.847Z
Answers.LastActivityDate: 2014-05-06T12:33:33.847Z
Answers.UserDisplayName: gavenkoa
Answers.Body: <p>There is a <a href="https://www.indiegogo.com/projects/13-3-inch-android-e-reader#/" rel="nofollow">crowdfunding campaign</a> for an e-ink device that says they will release the firmware as free software.</p>
  
  <blockquote>
    <p>We intend on making the firmware for the 13.3 inch e-reader available to the entire community.</p>
  </blockquote>
  
  <p>I have no affiliation with the campaign or the people behind it.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-05-06T13:04:11.390Z
Answers.LastActivityDate: 2016-05-06T13:04:11.390Z
Answers.UserDisplayName: Matthias Weiler
Answers.Body: <p>XDA Developers don't have the e-Ink Kindle, but they have a page for the Nook Touch.  </p>
  
  <p><a href="http://forum.xda-developers.com/nook-touch" rel="nofollow">http://forum.xda-developers.com/nook-touch</a></p>
  
  <p>Check out the "Android Development" thread.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-02-24T03:22:40.500Z
Answers.LastActivityDate: 2014-02-24T03:22:40.500Z
Answers.UserDisplayName: Eclectic
Body: <p>I'm curious if there are custom firmwares for e-ink devices similar to what Rockbox (<a href="http://www.rockbox.org/">website</a>, <a href="http://en.wikipedia.org/wiki/Rockbox">wikipedia</a>) is for digital audio players.</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-05-09T23:49:17.707Z
Comments.Text: I think OP was purposefully broad because they aren't even sure where to start, except by asking. And asking is where good ideas start.
Comments.UserDisplayName: Bulrush
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2013-12-20T22:04:35.397Z
Comments.Text: This may possibly be to be too broad as there are many very different e-ink devices. e-Ink is a display technology, not an architecture
Comments.UserDisplayName: DVK
Tags: <e-ink><ebook-readers><firmware><customization>
Title: Are there any free open-source custom firmwares for e-ink devices?
UserDisplayName: Sekhemty
ThreadText: # Are there any free open-source custom firmwares for e-ink devices?
  
  (Asked by: username_0 on 2013-12-20)
  
  I'm curious if there are custom firmwares for e-ink devices similar to what Rockbox ([website](http://www.rockbox.org/), [wikipedia](http://en.wikipedia.org/wiki/Rockbox)) is for digital audio players.
  
  **Tags:** e-ink, ebook-readers, firmware, customization
  
  > **Comments:**
  > **username_2**: This may possibly be to be too broad as there are many very different e-ink devices. e-Ink is a display technology, not an architecture  
  > **username_1**: I think OP was purposefully broad because they aren't even sure where to start, except by asking. And asking is where good ideas start.  
  
  ---
  
  ## 6 answers
  
  ### Answer by username_0 on 2017-02-15. Score: 1 | Accepted answer
  
  [KOReader](https://github.com/koreader/koreader/wiki) is an ereading software available for several devices and platforms. Quoted from [Mobileread wiki](https://wiki.mobileread.com/wiki/KOReader):
  
  > KOReader is a document viewer for Linux based E Ink devices. Currently
  > there are versions for Kindle, Kobo, PocketBook, and Android devices.
  
  The installation procedure depends on the device. Support forums are available on [Mobileread](https://www.mobileread.com/forums/forumdisplay.php?f=276).
  
  [![enter image description here](https://i.sstatic.net/r2HY0.png)](https://i.sstatic.net/r2HY0.png)
  
  
  ---
  
  ### Answer by username_2 on 2013-12-20. Score: 9
  
  It depends on specific device and its architecture.
  
  Those that are built on top of Android, typically tend to get AOSP ports, e.g. [Nook](https://www.google.com/search?q=aosp%20nook&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla%3aen-US%3aofficial&client=firefox-a&channel=fflb) (here's [Simple Touch instructions](http://www.alexroddie.com/2013/06/android-on-nook-simple-touch-part-2.html)), or [Kindles](https://www.google.com/search?q=aosp%20kindle%20fire&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla%3aen-US%3aofficia) - the latter even has CyanogenMod ROM.
  
  [Sony PRST 1](https://www.google.com/search?q=Sony%20PRS-T1%20android&rls=org.mozilla%3aen-US%3aofficial) was hacked to expose [full underlying rooted Android](http://www.mobileread.com/forums/showthread.php?t=184646) but I'm not sure if AOSP based ROM is available for it - [this might be it](http://sonyfmngr.sourceforge.net/prsT1.htm).
  
  I'm not sure if there are any non-Android-based mainstream eInk readers - most of the ones I heard of (which is not a lot) seem to be Android under the covers and thus can be opened up (e.g. see [Kobe Glo](http://www.geeky-gadgets.com/kobo-glo-e-reader-transformed-into-full-android-tablet-by-hackers-05-11-2013/)).
  
  > **Comments:**
  > **username_3**: But... neither the Nook nor the Kindle Fire is an e-ink device as *the question specifically asked*.  
  > **username_2**: @username_3 - http://www.barnesandnoble.com/p/nook-simple-touch-barnes-noble/1102344735. I thought that was e-ink? I'm unsure of the varieties of Kindles, but was under impression that they were all Android-based. I'll check.  
  > **username_2**: @username_3 - Nook, I can confirm. This article on rooting it confirms e-Ink: http://www.alexroddie.com/2013/06/android-on-nook-simple-touch-part-2.html  
  
  ---
  
  ### Answer by username_4 on 2013-12-22. Score: 3
  
  There is a project, called [PRS+](https://code.google.com/p/prs-plus/), for older Sony PRS devices (PRS-300, PRS-505, PRS-600, PRS-350, PRS-650, PRS-950).
  
  > **Comments:**
  > **username_5**: Link broken, loos like this is an archive of the project: https://code.google.com/archive/p/prs-plus/  
  
  ---
  
  ### Answer by username_6 on 2014-05-06. Score: 0
  
  Look to inactive project [OpenInkpot](http://morgue.openinkpot.org/) ([2](http://ru.wikipedia.org/wiki/OpenInkpot), [3](http://wiki.mobileread.com/wiki/Openinkpot)).
  
  
  ---
  
  ### Answer by username_7 on 2016-05-06. Score: 0
  
  There is a [crowdfunding campaign](https://www.indiegogo.com/projects/13-3-inch-android-e-reader#/) for an e-ink device that says they will release the firmware as free software.
  
  > We intend on making the firmware for the 13.3 inch e-reader available to the entire community.
  
  I have no affiliation with the campaign or the people behind it.
  
  
  ---
  
  ### Answer by username_8 on 2014-02-24. Score: 0
  
  XDA Developers don't have the e-Ink Kindle, but they have a page for the Nook Touch.
  
  <http://forum.xda-developers.com/nook-touch>
  
  Check out the "Android Development" thread.
  
  
  ---
  
  