What you are asking is beyond the scope of most
users on here.
First of all, unless you have a 798, and an 1198, and a
Minn Kota trolling motor with I-pilot capability,
and have tried the software updates to get everything working,
you are not going to know what issues exist.
Also, the Ipilot link is fairly new, which will probably require
one of the newer updates. Some of the newer updates
have had problems.
Your best bet is to call Humminbird customer service at
1-800-633-1468 and let them help you sort it all out.