Thread: How To Get Your SD Card ID in Your Garmin Device

Originally Posted by catymag

Check if plugin is installed correctly.
In the desired SD card create a directory Garmin and copy in it any file gmapsupp.img with some real .unl .
This is for bluecharts update, it needs an .img and an.unl

I haven't any .unl file on SD Card so maybe that is the reason why correct informations didn't appear in my case. I will try again with .unl file when I will be back home and I will let You know about results.

Originally Posted by lolypop000

@serwistk

What map you try to unlock?

I am trying to unlock map "PL TOPO 2014.4" which I bought recently, however I think that if I paid for this, then I have right to use it also in my second device... Originally this map is locked and assigned to microSD card.