That's interesting, receped. I wonder how much antenna length is at play with mine - being a little rectangle the antenna must be quite small. I also held it level, ie horizontal. Maybe I should have held it vertical? Or does being connected to a smartphone somehow boost signal? I was treating my issues as two separate problems but perhaps they're related. I suppose I should try downloading the app again - maybe they fixed the issue of not re-connecting to the phone without wifi in the many months since I last tried. For what it's worth, I did try both turning on Bluetooth after hitting airplane mode, and turning off airplane mode, but it still wouldn't reconnect when outside cell data service. I thought the Garmin would work equally well without the app in terms of sending messages (just a pain to type them) but maybe the app/phone also boost signal somehow. Or, it was just tree cover at the times I attempted to transmit. I'll have to probe the issue further when time allows and maybe take it up with Garmin.