Erase LEX_PKG from SD card and from .System folder

Download [Only registered and activated users can see links. ] and extract

Copy LEX_PKG to Garmin folder on internal memory of your nuvi.
Open keygen and put ID of your nuvi in it.
Select garmin language guide and click generate.
Open D046800.unl with notepad
Copy/paste generated code and save.
Turn off/on your nuvi
Garmin language guide now work.

p.s.
If you dont know how to generate code send me your garmindevice.xml on PM and i create D046800.unl for you.
You must update your nuvi with webupdater to latest FW,becouse this new glg wont work with older FW for series 1xxx