You may need to update the software when you install a new device or add an accessory.

You can use the ActiveCaptain^® mobile app to update the device software (Updating Software with the ActiveCaptain App ).

You can also use the Garmin Express™ desktop app to update your chartplotter software (Loading the New Software on a Memory Card Using Garmin Express).

The internal card readers on GPSMAP^® 8400 and 8600 series chartplotters support up to 32 GB memory cards, formatted to FAT32 with speed class 4 or higher¹. Use of an 8 GB or larger memory card with speed class 10 is recommended. As of software version 34.00, the internal card readers on GPSMAP 9000 series chartplotters support up to 1 TB memory cards, formatted to exFAT with speed class 10 or higher.

The Garmin^® memory card reader accessory is sold separately.

Before you update the software, you should check the software version installed on your device (Viewing System Software Information). Then, you can go to garmin.com/support/software/marine.html, select See All Devices in this Bundle, and compare the installed software version to the software version listed for your product.

If the software version installed on your device is older than the version listed on the website, you should update the software using the ActiveCaptain mobile app (Updating Software with the ActiveCaptain App ) or the Garmin Express desktop app (Loading the New Software on a Memory Card Using Garmin Express).