: If you have multiple Garmin units networked via the Garmin Marine Network, updating the primary unit will typically update all other compatible connected devices. Garmin Express™ | Update Maps and Devices
Insert your microSD card into the computer and follow the prompts to install the update files onto the card. : Power on your Garmin 93sv and insert the microSD card. how to update garmin 93sv
: Ensure your boat battery has a steady charge during the update to prevent the unit from shutting down mid-process, which can damage the device. : If you have multiple Garmin units networked