@BG he was updating the database(s) on the G1000. It has to be done at regular intervals, depending on your setup. We have five databases, supplied by Garmin and Jeppesen on subscription, and they all update at different intervals. Jepp charts update every two weeks, just like the paper.
If any one of them is expired you get messages and big red crosses on the screens........the aircraft flies without this stuff but it's way more convenient with it.