Garmin G3X Installation Manual page 455

NOTE
If the preceding software update pop-up does not appear, select the Database Information
Menu to update the software using the UPDATE SW softkey.
3. The unit will reboot, then GDU software update will begin automatically.
4. Ensure power is not removed while the update is being performed.
5. The unit will reboot after the update is complete.
6. Other connected non-display LRUs will automatically be updated to the correct software version.
Software for all CAN LRUs (GSU 25, GSU 73, GEA 24, GSA 28, GAD 29) and also the GDL 39/
39R will automatically be loaded by the display with no user action required. In configuration
mode, the MAIN Configuration page will display "Updating..." next to any device that is currently
performing a software update.
7. Repeat for each GDU in the aircraft.
190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout
Rev. AA Page 31-3