Just installed it in 3790 SD card,
Copied the full Garmin directory to my SD card and replaced the .unl file contents with the code from the following
Used :
Software: JM-KG-v1.5+5Digit+ChecksumFix (find it in main thread in Software [Only registered and activated users can see links. ]
Unit ID: My sd card ID (in order to find it in 3790 press continuously the battery icon in top right corner, it should be in page 3 --press next till you find the data card details)
Select Map Product: Garmin Language Guide
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