Ordinary
0xAF
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It could be a problem with UTF8 languages only, as the latin languages seems to work ok.
Have been identified UTF8 language problem?
Ideas to solve it?
I really need.
Ok, let's go step by step...
Download the latest release, copy both files (AUTOEXEC.BIN and LANGUAGES.INI) to an empty card, put the card in the camera, and test that you can select French or Spanish and it works. If this does not work, either there is something weird with your camera, or you are doing something wrong with the files.
If the first step works properly, try now to make a simple change: open it with Notepad++, make some silly change to a Spanish text (change "Guiones" to "Camiones", for example), and see if that works. If the Spanish translation stops working, and you see the texts in English again, then you probably are not using a nice editor.
Finally, if you can safely edit the file, then try to add some Chinese word in the Spanish translation, and see what happens. If this step fails, send us the file (just attach it to a post, or send it to the mailing list, or open an issue in the site) and we'll have a look at it.