Do you run webupdater or Garmin express and update all that was available for download?
In first star after you cure device nuvi ask you to set country, do you set it to Bulgarian?
You set country on page like on picture from your post #351 if you didn't set it then hard reset nuvi and then applay Bulgaria.
p.s.
After reset don't do anything in satelite menu, just whait that nuvi find satellite.
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