Select "Install" to begin copying the files from the SD card to the internal memory of the RNS 315. Wait: The process can take between 1 and 2 hours.
Official map updates for the (v.5 and later) are generally not available as a direct digital download for manual installation on a standard SD card. Rns 315 v.5 map update download
The system will notify you when the update is complete. You can then remove the SD card. Where to Find RNS 315 Map Updates (V12) Select "Install" to begin copying the files from