@Olgar79 please, check the below list and remember to use Notepad++ to edit if you are in windows:
1.- Apply
Allow searches on Extra dictionaries (
libnickel.so.1.0.0) patch.
As jackie_w says, you don't need to change patch.
2.- Edit
\.kobo\Kobo\Kobo eReader.conf and fill
ExtraLocales= under
[ApplicationPreferences] section:
3.- Dictionaries will not be downloaded. You must copy dictionary files (
dicthtml-e2.zip and
dicthtml-i2.zip) to
\.kobo\dict folder.
4.- Open the
\.kobo\KoboReader.sqlite SQLite database and insert a row for each dictionary on
Dictionary table.
Pay attention that suffix is
-e2 while name is
Extra:_e2 Inglés - Español (Harrap's) and size is in bytes.
5.- Safely disconnect the device and restart.
Good luck.