Kobo firmware 3.19.5761 mega update (KSM, nickel patch, ssh, fonts)

Since 3.18.0 there have been two new firmwares for the Kobo eInk devices. For the very recently released firmware release 3.19.5761 I have updated my collection of patches and features. As with previous mega-package, I prepared updates for all three hardwares, Mark4 (Glo), Mark5 (Aura), and Mark6 (GloHD), but only the one for Mark6 is tested by myself.

Kobo Logo

Changes since last release:

  • KSM updated to v8
  • koreader updated to v2015.11-stable
  • update pbchess package to 2015.07
  • (that was actually in the last one already, but I mention it again, just to be sure) customdict scripting update via run.sh was removed – for those who need it there is a patch that works better in the Metazoa patches, but I did not activate it for the public release.

Included patches from the Metazoa firmware patches: Custom reading footer style, My 15 line spacing values, Custom left & right margins, Brightness fine control, Search in Library by default, Custom page refresh options (1,2,3,…,12), Fix three KePub fullScreenReading bugs, Always display chapter name on navigation menu. Other things that are included are as usual: koreader, pbchess, coolreader, the ssh part of kobohack, and some side-loaded fonts. For details on the respective parts please see the previous post


Mark6 – Kobo GloHD

firmware: Kobo 3.19.5761 for GloHD

Mega update: Kobo-3.19.5761-combined/Mark6/KoboRoot.tgz

Mark5 – Aura

firmware: Kobo 3.19.5761 for Aura

Mega update: Kobo-3.19.5761-combined/Mark5/KoboRoot.tgz

Mark4 – Kobo Glo, Aura HD

firmware: Kobo 3.19.5761 for Glo and AuraHD

Mega update: Kobo-3.19.5761-combined/Mark4/KoboRoot.tgz


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20 thoughts on “Kobo firmware 3.19.5761 mega update (KSM, nickel patch, ssh, fonts)

  1. Pingback: Links 10/1/2016: New Tails, GNOME Airplane/WiFi Hot Key | Techrights

      • If there were a version for the Kobo Touch, I certainly would try it. I don’t know enough about the differences between Kobo Touch and Glo. It looks like they use the same CPU, only with different frequencies (800 MHz vs 1 GHz). Memory and display resolution seem to be the same, too.

  2. Thanks for this! Appears to be working fine on my Aura, and everything feels more smooth.

  3. Dear Norbert,

    Is there any slim chance that you could create a mega update for a Kobo Aura H2O? Or (perhaps much more reasonable to ask…) could you please point me in the right direction as to how one can apply all these patches manually to get the mega update functionality on this device?

    Many-many thanks in advance!

    • … sorry just realised that you included a link to each element under your post for the 3.17 firmware. Hopefully, I’ll be able to get through it on my own.

      Thank you for the great work!

  4. Sorry, but how do I uninstall this patch? It gave me some weird issues and I wanted to uninstall it without factory resetting everything.

    • That involves a few steps, depending on what you want to remove. If you want to remove the firmware modifications, simply put an original firmware into three .kobo for and it will be flashed. That will not delete your books or reading data and should suffice in practically all cases. If there are still problems you might need to remove tracts of the KSM08, too.

      • I had a quick look at this patch and might return to it. But meantime after I uninstalled per your instructions (plus also user script delete_ksm.sh) and I am now back on the stock firmware, I still have zero margins while reading a purchased kobo epub. With one or two pixels disappearing under the left hand bezel.
        Is this something from the mega patch I still need to remove in some way?

  5. A small question. How to install this firmware on Kobo Glo (current version 3.8.0) ?

    In “Instructions for patching firmware 3.19.5761”
    they say “Make sure your Kobo ereader is already running firmware version 3.19.5761”

    What is “Mega update” ?


  6. Please, automate disabling telnet&ssh by placing appropriate script in KSM: most users are not familiar with vi.

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