开云体育

There are multiple reasons that the your starting point wasn’t recognized. Most relate to receiving a signal from the GPS satellites. Many things can block the signal, like a parking garage, an overpass, being in a deep canyon or valley, possibly the roof of your vehicle, or extreme weather. The military can for national security reasons can block areas. And of course, not turning the feature on, which I doubt is the case for the OP.

As an aside, I used to fly into MSP, Minneapolis–Saint Paul International Airport, then have to immediately drive to Austin on the southern border. The problem is all the parking, including for the car rentals are in the parking structure. The loop in the airport is always busy, and the freeway on ramp is as you leave the airport, so you have to know which turnoff you need as you leave the airport. Not enough time for the GSP to find the satellites.

I have also driven from SoCal to Portland, Oregon along the coast. In areas along the coast you are too low to acquire enough satellites to determine you location, being too close to a cliff or too deep into a canyon. In this case even though I might have a location, I had no cellular data to put a map behind the pin. Was curious, so I was using both my iPhone and Garmin, with preloaded maps. Thankfully, I had unlimited data at the time, because two days of driving with the iPhone’s GPS on racked up the data.

Brent