My update's been a frustrating experience, to say the least. I bought the Navionics Updates chip to update data from my HotMaps Premium chip from several years ago. I saw a TV show where the host had a Navionics chip that had a bunch of house foundations on Lake Falcon, so I was told at BPS to buy the Updates chip for $100 rather than spend the $190 or so on the new chip.

I just sent a big long email to Navionics with pictures of my "updated" map, but my frustration comes down to the following:

1) The house foundations from the TV show aren't on the updated chip.
During the update, out of the Nautical Charts, Sonar Charts, and Community Edits, I could only update 2 out of the 3 because I had a Humminbird. However, since the TV show host also had a Humminbird, it's unlikely that this is the cause of the missing data.

2) The updated chip has less detail than my old chip. I looked at the same GPS coordinates on both chips to confirm this.
Also, since the "updated" chip showed different data, that tells me that I did the update process correctly to get the "new" maps and detail.

3) One lake (how many more?) are flat out missing from the updated chip. The lake that's missing is Lake Placid here in TX. I thought this might be attributed to me not selecting a big enough area on the map to update during the update process, but close-by lakes McQueeney and Meadow are up the "updated" chip. I know that Navionics removed some things in recent years because they weren't accurate, but to flat out remove a whole lake? Sheesh...


We'll see what Navionics says, but it sure is frustrating to buy this $100 chip that I can't take back to BPS because the package is opened...