There doesn't seem to be a dedicated forum/sub-forum for the eTrex 30x, so posting here as I have updated it with Garmin Express - none of the other forums looked any more suitable.
I bought a 30x last week. Garmin Express was already installed on my PC for another device and the 30x was recognised and it told me that updates were available. I downloaded and installed the software update (now at v3.0) but couldn't download the TopoActive maps as I didn't have a spare uSD card. A day or two later, fitted with a new uSD card, I was able to add the maps.
Since then, I've been using the device and getting used to its quirks. Today, I was trying to look up some tide times (Where To>Tides) but there appears to be no tide data on the device. It just says "No Results Found. Try Adjusting Search Parameters". If I press Menu, I get "Spell Search" but no matter what I put in the resulting search bar I still get the "No Results..." message.
I tried removing the uSD card to see if the newer maps were the problem, but the results were no different. Unfortunately, I don't know whether the Tides function was working with the pre v3.0 software as I didn't try it.
I've raised this with support, and they're supposed to be sending me an email, but problems with their systems mean it hasn't reached me yet, so I thought I'd try here in the meantime.
Any ideas? Has someone else got a 30x upgraded to v3.0 and can see the tide info?