If you have an SD card reader or an SD card slot in your computer, you can load JPEG picture files to your card to test the SD card reader on the device. If the device reads the picture file normally, then the card reader is working and the issue is likely due to a problem with the map data itself.

However, if the device is not able to read the picture file on the card, then the issue is likely to be with the SD card itself or the device's card reader. Try using another SD card. If that is also not working, contact product support for assistance.

To load a picture onto the micro/SD card on a Windows PC:

Click on the Start menu
Double click on My Computer (XP) or Computer (7 or Vista)
Double click on the micro/SD card drive
- This will be called Removable Media or Removable Disk
Right click in an open area within the window
Select "New" from the menu
Select "Folder"
Name the folder JPEG
Locate and place a picture that is in .jpg format into the folder
Eject the micro/SD card from the SD card reader
Stick the micro/SD card into the device and go to the Picture Viewer
- This can be found from the Tools or Apps menu depending on the device

The loaded picture file should display within the Picture Viewer.

To load a picture onto the micro/SD card on a Mac:

Double click on the micro/SD card icon as it appears on your desktop
- This can also be located in the Finder window under Devices
- Some cards may appear named as "No Name" or "Unknown"
Right click in an open area within the window
- You may also hold the Control button and click with your mouse or trackpad
Select "New" from the menu
Select "Folder"
Name the folder JPEG
Locate and place a picture that is in .jpg format into the folder
Safely eject the micro/SD card from the SD card reader
Place the micro/SD card into the device and go the Picture Viewer
- This can be found from the Tools or Apps menu depending on the device

The loaded picture file should display within the Picture Viewer.