In some rare cases, advanced users may need to manually move 4NSF files (for example, when recovering from a corrupted SD card). If you have the file and need to install it manually: Connect your Garmin to the PC in "Mass Storage Mode." Open the device drive (or SD card drive).
In some rare cases, advanced users may need to manually move 4NSF files (for example, when recovering from a corrupted SD card). If you have the file and need to install it manually: Connect your Garmin to the PC in "Mass Storage Mode." Open the device drive (or SD card drive).