Terrova auto pilot wont work.

Hi guys i’m having an issue with my terrova i got it back in august of 2017 its the I Pilot blue tooth but i do not have the link option. Late last year i noticed my auto pilot was not working correctly, it would just keep turning me to the right. I got new batteries this winter thinking my batteries where getting old. I took it out today and paired it with the hockey puck think and my auto pilot still does not work. Any ideas on what is wrong? I took the cover off to see if the compass was the same in the parts picture and its not the same. Kinda stuck on this one.

Don’t want to give you bad news but my original Terrova, it was pre bluetooth acted up a similar way and ended up replacing the head. That’s after a tec. suggested buying a new remote, which didn’t work. Does it have the latest software update?

I ended up replacing the head unit. Hopefully this one last longer than four years.