How to install OpenStreetMap on Garmin Fenix

I have a Garmin Fenix 6X Pro device. Garmin does not offer official maps for South-East Asia. Luckily, it’s possible to install a free Open Street Map on the device.

Steps I used

1. Go to https://garmin.bbbike.org/
2. Select the desired map fragment and provide your email to receive the generated package
   1. I used “Garmin OSM (latin1)” format according to a guide I followed. I’m not sure yet if this is the right choice for a map of thailand but acccordingly to this guide the UTF-8 encoding does not work with devices older than Fenix 7.
3. Download the zip
4. Attach your Garmin Fenix device by USB to your computer
5. Find the .img file in the downloaded zip and copy it to the GARMIN folder on the Fenix

Resources

OpenStreetMap wiki lists websites offering .img file downloads: OSM Map On Garmin/Download