I just hooked up my Humminbird 788 that had been returned for warranty service. Recently (prior to the warranty service) I had downloaded the upgrade 5.400 on it so it would Interlink with my 898, which has the 5.410 upgrade on it. When I checked the 788, it has been factory loaded with version 4.510 during repairs, which will not allow it to Interlink with the 898. Is there an issue with the software version 5.400 for the 788? We suspected that a software issue wiped the operating system off the 788, requiring the warranty repairs. I need to load the software that will allow the Interlink to work but don't want to wipe out the 788 like before.

Any ideas? Any ideas why Humminbird would not have loaded the latest version on it during warranty service?