Simple and only took a few minutes. the only problem I ran into is the card MUST be 32gb or less. I tried using a 64gb card I had on hand and Helix won’t read a card that big at all.
Other than that it works exactly as advertised on the video. Took about 5 minutes to install and reset completely.
This ^^ saved me more frustration. So much good information on this site.
I couldn’t find the exact problem I was having with my SI on my Helix 9. The tech at Humminbird was a great help. I had never updated my Helix in the 4 years that I’ve had it. I guess I didn’t realize I had to. Anyway, the update fixed my SI issue and other functions seem better as well.
It’s easy to do if you follow the steps. FWIW, the new release for my unit let me jump from the first release to the latest. The tech did email a version in between to jump to first, but I didn’t need to.