Setting up the GPS signal:
When you initially set up the device, you will remember that it requires time for the Satellites to acquire the GPS signal and it needs to be outside.
Please be patient as it may take some time to sync. We suggest leaving it on a window sill or take it out in the car to sync.
Most of the problems are because the watch needs to sync with 3 satellite and have line of sight to the satellite to the watch. If it has been off for so long, it needs to be within line of sight to the satellite for a few hours, plus the app needs to be open as well.
Sometimes, if they go into a building, it will lose the signal and the location will change to the nearest tower. The writing on the app is red for GPS and blue for LBS (tower).