GPSFAQs.org: GPS Information

Garmin eTrex Legend Cx FAQ: Firmware

1. Garmin Firmware
1. How can I tell what version of firmware is in my Garmin eTrex Legend Cx?
2. How do I upgrade the firmware on my unit?
3. How can I tell how much map memory is in use on the GPS?
4. Why do I sometimes see two firmware version numbers displayed?

1. Garmin Firmware

1. How can I tell what version of firmware is in my Garmin eTrex Legend Cx?
2. How do I upgrade the firmware on my unit?
3. How can I tell how much map memory is in use on the GPS?
4. Why do I sometimes see two firmware version numbers displayed?

1.

How can I tell what version of firmware is in my Garmin eTrex Legend Cx?

MENU > MENU > Setup > ENTR > System > ENTR > MENU >Software Version > ENTR

2.

How do I upgrade the firmware on my unit?

Use Garmin's Webupdater software for Mac or Windows systems to upgrade the firmware.

3.

How can I tell how much map memory is in use on the GPS?

There are a couple of options.

On recent firmware, Go to the Main Menu, then select or press Tracks:Enter:Setup:Enter:Data Card Setup:Enter:Menu:Card Info:Enter

On any firmware, but you can start Mapsource and read maps from the GPS. In the tab for 'maps' it will display a total of the space used.

Alternately, you can put the GPS into Mass Storage mode and view the disk usage on it from your favorite computer.

4.

Why do I sometimes see two firmware version numbers displayed?

If you see two version numbers displayed, the first is the main OS of the receiver. The second is the version of the code used by the receiver circuit.

Around mid 2008, Garmin started shipping these models with Mediatek receivers instead of the SirfStar III receiver chips. If there is no letter after the second version or the letter is 's', you have a Sirf model. If there is an 'm', you have a Mediatek receiver.

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