GPSMAP 620 and GPSMAP 640 Owner’s Manual 29Marine Mode: Managing User DataRestoring Backup Marine Data to your Device1. Copy the .ADM file from your computer to an SDcard in a folder named Garmin\UserData.2. Insert the SD card into your device.3. From the Home screen on your device, touch Information >User Data > Data Transfer > Replace From Card.4. Touch the name of the data file you want to restore.Copying or Merging MapSource® MarineData to the GPSMAP 620 or GPSMAP 640Using an SD card:1. Insert the SD card into your GPSMAP 620 or GPSMAP 640device. The unit places a file on the card that providesinformation to MapSource to format data. This only needs to bedone the first time you copy or merge MapSource data to yourdevice from a specific SD card.2. Check your MapSource version on your PC by clicking Help >About MapSource. If the version is older than 6.12.2, update tothe most-current version by clicking Help > Check for SoftwareUpdates or check the Garmin Web site at www.garmin.com.3. Insert the SD card into an SD card reader that is attached to thePC.4. From MapSource, click on Transfer > Send to Device.5. From the Send to Device window, select the drive for theSD card reader, and select the types of data you want to copy toyour device.6. Click Send. MapSource transfers a file named USERDATA.admto the SD card.7. Insert the SD card into your device.8. From the Home screen on your device, touch Information >User Data > Data Transfer.9. Touch Replace From Card or Merge From Card to copy ormerge the data into your device.Connecting the device directly to the PC:1. Power on the unit in marine mode, or switch to marine mode.2. Connect the device to your computer using a mini-USB cable.3. From MapSource, click on Transfer > Send to Device.4. From the Send to Device window, select the GPSMAP 620 orGPSMAP 640.5. Click Send.