I have already managed to download the Bulgarian voice from Garmin Express (my version of the software is the latest, which you mentioned above) but the Text language and the Keyboard language remained the same after the update - only English. I have also tried with WebUpdater but the only options for downloading there are for voice language in other languages.
I will be really thankful if someone is able to upload all the files from the Keyboard and Text folder for Nuvi 50LM.
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