Instructions for patching firmware 4.38.21908

geek1011 · 09-11-2023, 02:25 PM

This patch thread is for firmware 4.38.21908 (fac580f37d610f9f83589746b785a7650532b3cf):

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

Download the Kobo firmware release
You can find the download links here here.
Download and extract the patch zip
Download and unzip kobopatch_4.38.21908.zip from here.
Copy the firmware file to the src folder
Copy the original firmware you just downloaded into the kobopatch src folder.
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.
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).
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).
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 · 09-11-2023, 02:25 PM

Changes to the kobopatch zip:
v84 (2023-09-11): Initial release for 4.38.21908.

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

jackie_w · 09-11-2023, 03:14 PM

The dictionary patch Dictionary text font-family/font-size/line-height - in libnickel.so.1.0.0.yaml - needed a small adjustment for fw 4.38.21908.

Although the change is related to dictionary font-family, it will affect anyone who uses this patch. So, anyone who has stored their own customised version of the patch will need to take a fresh copy before re-applying their customisations.

Compare your old customisations with the commented-out examples at the end of the patch to see whether you'll need to tweak your custom code.

JSWolf · 09-11-2023, 03:21 PM

Thank you @geek1011 and @jackie_W. This is really appreciated.

icallaci · 09-11-2023, 04:44 PM

Thank you very much!

hatuluang · 09-11-2023, 04:59 PM

Thank you!

Aleron Ives · 09-11-2023, 05:21 PM

Step 4 just means you need to be on 4.38 vanilla before installing 4.38 patches, right? You don't need to re-install 4.38 manually if you already got the update from Kobo?

jackie_w · 09-11-2023, 05:38 PM

Quote:

Originally Posted by Aleron Ives

Step 4 just means you need to be on 4.38 vanilla before installing 4.38 patches, right? You don't need to re-install 4.38 manually if you already got the update from Kobo?

No need to reinstall. The note just means make sure that you're applying 4.38 patches to 4.38 fw. Bad Things could happen if there's a mismatch.

IanScuffling · 09-11-2023, 06:01 PM

Thanks very much for the patch. Installed the fw update and then the patch. Everything seems to be working.

Phil_C · 09-11-2023, 08:16 PM

Wonderful! Much appreciated.

readologist · 09-11-2023, 09:35 PM

Worked flawlessly, as always

GlenRunciter · 09-12-2023, 05:29 AM

Merci beaucoup!

xyclonei · 09-12-2023, 06:33 AM

Thank you!

Aleron Ives · 09-17-2023, 03:36 AM

Moved to the kobopatch request thread:

https://www.mobileread.com/forums/sh...&postcount=992

rogerinnyc · 09-21-2023, 11:08 AM

Thanks for the patches, as always. Is anyone else having trouble with the Don't uppercase header/footer text patch? It's not working for me on my Libra 2, using the latest 4.38.21908. Oddly, when I open libnickel.so.1.0.0.yaml in Notepad++, the patch shows up, but unlike all the other patches, it is not bolded/colored. I don't know enough about coding or Notepad to know what that means, but it certainly seems consistent with the patch being buggy this time around? It has always worked for me across numerous software upgrades, but not this one.

Thanks for any enlightenment/assistance!

09-11-2023, 02:25 PM	#1
geek1011 Wizard Posts: 2,792 Karma: 6990707 Join Date: May 2016 Location: Ontario, Canada Device: Kobo Mini, Aura Edition 2 v1, Clara HD	Instructions for patching firmware 4.38.21908 This patch thread is for firmware 4.38.21908 (fac580f37d610f9f83589746b785a7650532b3cf): Instructions for patching on Windows, Linux, or macOS with kobopatch: Download the Kobo firmware release You can find the download links here here. Download and extract the patch zip Download and unzip kobopatch_4.38.21908.zip from here. Copy the firmware file to the src folder Copy the original firmware you just downloaded into the kobopatch src folder. 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. 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). 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). 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

09-11-2023, 09:35 PM	#11
readologist Enthusiast Posts: 46 Karma: 314 Join Date: Aug 2018 Device: Kobo Libra H20, Libra 2	Thanks Much Worked flawlessly, as always

09-17-2023, 03:36 AM	#14
Aleron Ives Wizard Posts: 1,440 Karma: 16297052 Join Date: Sep 2022 Device: Kobo Libra 2	Moved to the kobopatch request thread: https://www.mobileread.com/forums/sh...&postcount=992 Last edited by Aleron Ives; 09-17-2023 at 04:37 AM.

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09-11-2023, 03:14 PM	#3
jackie_w Grand Sorcerer Posts: 6,225 Karma: 16536676 Join Date: Sep 2009 Location: UK Device: Kobo: KA1, ClaraHD, Forma, Libra2, Clara2E. PocketBook: TouchHD3	The dictionary patch Dictionary text font-family/font-size/line-height - in libnickel.so.1.0.0.yaml - needed a small adjustment for fw 4.38.21908. Although the change is related to dictionary font-family, it will affect anyone who uses this patch. So, anyone who has stored their own customised version of the patch will need to take a fresh copy before re-applying their customisations. Compare your old customisations with the commented-out examples at the end of the patch to see whether you'll need to tweak your custom code.

09-11-2023, 03:21 PM	#4
JSWolf Resident Curmudgeon Posts: 76,513 Karma: 136565488 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3	Thank you @geek1011 and @jackie_W. This is really appreciated.

09-11-2023, 04:44 PM	#5
icallaci Guru Posts: 796 Karma: 6528026 Join Date: Sep 2012 Device: Kobo Elipsa	Thank you very much!

09-11-2023, 04:59 PM	#6
hatuluang Zealot Posts: 148 Karma: 348662 Join Date: Jan 2023 Location: Indonesia Device: Kobo Clara 2E	Thank you!

09-11-2023, 05:21 PM	#7
Aleron Ives Wizard Posts: 1,440 Karma: 16297052 Join Date: Sep 2022 Device: Kobo Libra 2	Step 4 just means you need to be on 4.38 vanilla before installing 4.38 patches, right? You don't need to re-install 4.38 manually if you already got the update from Kobo?

09-11-2023, 06:01 PM	#9
IanScuffling Enthusiast Posts: 47 Karma: 10 Join Date: Mar 2019 Location: Washington DC Device: Kobo Aura HD	Thanks very much for the patch. Installed the fw update and then the patch. Everything seems to be working.

09-11-2023, 08:16 PM	#10
Phil_C Addict Posts: 255 Karma: 391602 Join Date: Oct 2009 Location: Chicago, IL USA Device: Sony PRS-350; Kobo Clara HD; Kobo Clara 2E; Kobo Clara BW	Wonderful! Much appreciated.

09-12-2023, 05:29 AM	#12
GlenRunciter Enthusiast Posts: 36 Karma: 253826 Join Date: Apr 2015 Location: Stuttgart Device: Kobo Sage	Merci beaucoup!

09-12-2023, 06:33 AM	#13
xyclonei Zealot Posts: 108 Karma: 67444 Join Date: Dec 2018 Device: Kobo Clara HD	Thank you!

09-21-2023, 11:08 AM	#15
rogerinnyc Addict Posts: 227 Karma: 944808 Join Date: Apr 2009 Device: Kobo Libra 2, Forma and Aura One; Kindle Voyage; Galaxy Note 10	Thanks for the patches, as always. Is anyone else having trouble with the Don't uppercase header/footer text patch? It's not working for me on my Libra 2, using the latest 4.38.21908. Oddly, when I open libnickel.so.1.0.0.yaml in Notepad++, the patch shows up, but unlike all the other patches, it is not bolded/colored. I don't know enough about coding or Notepad to know what that means, but it certainly seems consistent with the patch being buggy this time around? It has always worked for me across numerous software upgrades, but not this one. Thanks for any enlightenment/assistance!

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