[123kajote]

Originally Posted by AlPe

Instructions on how to install a custom dictionary on your Kobo can be found in the README of the GitHub repo: https://github.com/pettarin/penelope

I've done that,... and it worked.... until I choose Update Kobo,... then this "faked" file was overwritten with original update....

So, if you want to have your own dictionary never choose update Kobo....