Humminbird 999 update

[@gilb5710]

What year did you make this video? Are there updates now for discontinued models? I own one of these. How do I find the year it was built? Thanks

[@pickwickmarineelectronics1019]

Greg if it works I would not update it. The serial number contains the year manufactured. It will the be 3rd and 4th digit if I remember correctly. The first two are the month it was made.

[@gilb5710]

Pickwick Marine Electronics I agree. No updates. Thank you for the info.