Instructions for patching firmware 4.35.20400

[geek1011]

This patch thread is for firmware 4.35.20400 (73cfa09552e5d72a3b23edb44554fd157dc4b508):

Instructions for patching on Windows, Linux, or macOS with kobopatch:

1. Download the Kobo firmware release
   You can find the download links here here.
2. Download and extract the patch zip
   Download and unzip kobopatch_4.35.20400.zip from here.
3. Copy the firmware file to the src folder
   Copy the original firmware you just downloaded into the kobopatch src folder.
4. Install the firmware if needed
   Install the firmware on your kobo BEFORE proceeding with the next steps. You can do this by extracting the contents of the firmware zip into the .kobo folder and ejecting.
5. Choose your patches from the files in the src folder
   Enable patches in the files in the src folder (or use the overrides in kobopatch.yaml to keep your options separate).
6. Run kobopatch
   Double-click kobopatch.bat on Windows, or run ./kobopatch.sh on Linux or macOS. On macOS, you can drag it into the terminal and press enter (you may need to go to System Preferences - Security and Privacy - General to confirm that you actually want to run it).
7. Install the patches by copying KoboRoot.tgz into the .kobo folder of your device
   If the patching succeeded, a file named KoboRoot.tgz will be created in the out folder. Copy it to the .kobo folder of your device. Safely remove your device once you are finished. On Linux, you may have to press Ctrl+H to show the .kobo folder.

Download

[geek1011]

Changes to the kobopatch zip:
v81 (2023-06-23): Add Clara2E comment labels (jackie_w).
v80 (2022-12-08): Initial release for 4.35.20400.

Missing patches:
- GeoffR: KePub constant font sharpness
- GeoffR: Ignore .otf fonts

[jiminrussell]

@geek1011 Thanks for the updates!

[GlenRunciter]

Big THX for the patches!

[nietsnut]

Thank you for the patches 👍🏻

[Number9]

Thank you! 😊

[Deobulakenyo]

Thank you

[JSWolf]

Thank you very much for the patches.

[Dirk-71]

---deleted----

[Vetchy]

Today was update to new version and apply my list of patches and get issue with cyrillic text in header and footer (extra space between letters).
And don't understand this is bug or something was changed in FW and direct replace font dont' fix this.

My kobopatch.yaml

## Works with kobopatch v0.15.0 and later.
## You can update kobopatch by downloading the latest release from https://github.com/pgaskin/kobopatch/releases. 
version: 4.35.20400
in: src/kobo-update-4.35.20400.zip
out: out/KoboRoot.tgz
log: out/log.txt

patchFormat: kobopatch

patches:
  src/nickel.yaml: usr/local/Kobo/nickel
  src/libadobe.so.yaml: usr/local/Kobo/libadobe.so
  src/libnickel.so.1.0.0.yaml: usr/local/Kobo/libnickel.so.1.0.0
  src/librmsdk.so.1.0.0.yaml: usr/local/Kobo/librmsdk.so.1.0.0

overrides:
  src/nickel.yaml:
    Dictionary pop-up - increase available text area: yes
    Remove footer (row3) and increase cover size on new home screen: yes
    Change TOC level indentation: yes
  src/libadobe.so.yaml:
  src/libnickel.so.1.0.0.yaml:
    Set KePub hyphenation: yes
    Shorten dictionary entry not found message: yes
    Cyrillic Keyboard (GloHD/ClaraHD/AuraOne/H2O2): yes
    Always show confirmation dialog before upgrading: yes
    Remove recommendations (row1col2) from home screen: yes
    Never show Kobo Plus, wishlist, and points SmartLinks: yes
    Allow rotation on all devices: yes
    Don't uppercase header/footer text: yes
    Customize ComfortLight settings: yes
    FeatureSettings - BookSpecificStats: yes
    Unify font sizes: yes
  src/librmsdk.so.1.0.0.yaml:

files:
    src/Avenir.ttf: usr/local/Trolltech/QtEmbedded-4.6.2-arm/lib/fonts/Avenir.ttf
    src/Avenir-Bold.ttf: usr/local/Trolltech/QtEmbedded-4.6.2-arm/lib/fonts/Avenir-Bold.ttf
    src/Avenir-Italic.ttf: usr/local/Trolltech/QtEmbedded-4.6.2-arm/lib/fonts/Avenir-Italic.ttf
    src/Avenir-BoldItalic.ttf: usr/local/Trolltech/QtEmbedded-4.6.2-arm/lib/fonts/Avenir-BoldItalic.ttf

[Vetchy]

@jackie_w — can I ask you for check one of your beatifule patches: https://www.mobileread.com/forums/sh...75&postcount=4
I was try to apply it by kobopatch.yaml and un-comment next row

- {Find: "font-family: Avenir;", Replace: "font-family:Avenir;"}

And I replace built-in Avenir font in firmware to new version with cyrillic support.
P.S. I was try replace to RakutenSansUIApp-Regular — but hasn't effect too
P.P.S. Replaced to Georgia — works fine.

But main question is why not applied new version of Avenir. Where it used I have got double space between characters.

[jackie_w]

Originally Posted by Vetchy

@jackie_w — can I ask you for check one of your beatifule patches: https://www.mobileread.com/forums/sh...75&postcount=4
I was try to apply it by kobopatch.yaml and un-comment next row

- {Find: "font-family: Avenir;", Replace: "font-family:Avenir;"}

And I replace built-in Avenir font in firmware to new version with cyrillic support.

I'm not sure exactly what you're asking, can you elaborate?

That link is a very old iteration of one of the nickel patches. The one for firmware 4.35.20400 is Custom header/footer captions. However most of the ability to use a sideloaded custom font in the GUI disappeared in fw 4.32.19501.

As far as I know it's still possible to completely replace the built-in system font files for 'Avenir Next' with a set for a font of your choice, as long as the internal and external filenames of the replacements are also set to 'Avenir Next'. I do this myself by using a renamed Calibri font and it still seems to work OK in the current firmware. If this is what you are doing and it's not working for you I would need to see your replacement Avenir fonts so I can test them myself. A link in a PM would be best. Also, what are you seeing to make you think your new font is no longer working?

[Vetchy]

Jackie_w was helped me again. The issue was in internal font name. My Avenir font contain Cyr suffix and it broke replacing. After change font name by Font Forge all works fine.
Jackie_w — Rakuten must pay you salary

[retro]

I looked at the nickel.yaml to tweak the patch for Reduce new header/footer height: and noticed there was not an entry for the Clara 2e. Will adjusting the entry for the Clara HD (Dragon) work on the 2e?

Since the firmware download is different, I don't know if it is considered Dragon.
Thanks!

[jackie_w]

Originally Posted by retro

I looked at the nickel.yaml to tweak the patch for Reduce new header/footer height: and noticed there was not an entry for the Clara 2e. Will adjusting the entry for the Clara HD (Dragon) work on the 2e?

Since the firmware download is different, I don't know if it is considered Dragon.
Thanks!

Yes, wherever you see the ClaraHD label in a nickel.yaml patch, assume you should use this setting for the Clara2E.

Just FYI, the Clara2E is actually code-named 'Goldfinch' and the ClaraHD is 'Nova', but nickel sometimes uses 'Dragon' (AuraHD) settings for all 6 Kobo models which share the same 1080x1440 screen resolution size.

The missing Clara2E labels in .yaml files are an oversight which I'll try to fix before the next kobopatch release. Thanks for pointing it out.