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Updating the GTN 6xx/7xx using the Database Concierge feature of the Flight Stream 510
Database updates may be completed wirelessly from a mobile phone or tablet using the Wi-Fi built into a Flight Stream 510 avionics wireless interface through Connext® connected cockpit. Databases will automatically sync to other connected GTN™ moving-map GPS navigators and G500 or G600 MFD and PFDs using the Database Sync function. Databases may also be updated by downloading directly from a PC onto the Flight Stream 510 or another SD card. Initial database installation needs only to occur on one GTN device.
Please view the linked document below for further information.