=== USB Mass storage mode ===

If you have inserted a SD card in your navigation device and there is no device created if you connect it via USB to your PC, make sure you have //CONFIG_SCSI_MULTI_LUN// enabled in your Linux kernel.

|**Linux Kernel Configuration:** //Device Drivers -> SCSI device support//  |
|<code>
...
[*] Probe all LUNs on each SCSI device
...
</code>|

=== Maps ===

OSM maps overview https://wiki.openstreetmap.org/wiki/OSM_Map_On_Garmin/Download

  * http://osm.thkukuk.de/
  * https://wiki.openstreetmap.org/wiki/DE:OSMC_Reitkarte
  * http://garmin.openstreetmap.nl/
  * https://www.openmapchest.org/

=== Firmware Upgrades ===

https://www8.garmin.com/support/download_details.jsp?id=4523

  * Get the latest file: https://download.garmin.com/software/Oregonx50_WebUpdater__660.gcd
  * Attach your Garmin device to your computer and verify that it is in USB Mass storage mode
  * Copy the downloaded file to ${MOUNT_POINT}/Garmin/gupdate.gcd
  * Restart your Garmin device