I have a gen3 Helix 12 with side imaging. I went fishing today and I could not get any of the sonar imaging working. It was just blank. The only thing that worked was the gps mapping and temperature. Now the obvious cause would be the transducer but I don’t think that’s it. It worked last time I was out and I am still getting a temperature reading. I think it has something to do with the software update. I keep gettiny alerts on the FishSmart app about a software update and I have tried to install it but it doesn’t work. I go through all the steps and nothing happens. No error messages or anything. Now when I turn on my unit, it gives me the yes or no question shown in the picture. I have tried clicking both yes and no. Nothing happens. Any suggestions on what to do?

So when you click yes,  does the unit just start up and work as normal except for the sonar?

41 minutes ago, Tennessee Boy said:

So when you click yes,  does the unit just start up and work as normal except for the sonar?

Yes, that’s exactly what happens.

Humminbird recommends that you restore the factory default before upgrading.  Did you do that?  If not,  that's the first thing I would try.

 

If that doesn't work,  I would get a memory card.  You only have 1.4GB or 14GB of internal storage left.  That should be enough but you can get a 32GB card for less than $10 so I would do that and download the update to the card to see if that helps.  If it doesn't,  you still have increased your storage which is worth $10 IMO.

 

If none of the above works, then I would call tech support.

The upgrade caused both of my g3 units to change the selected transducer. I would make sure you have the right one selected on the menu - also confirm that sonar is turned on.