I had this problem over a year ago. My friend moved countries but find friends would always place him at his old house for a good few minutes until it finally updated the current location. This happened for a good month.
I had this problem over a year ago. My friend moved countries but find friends would always place him at his old house for a good few minutes until it finally updated the current location. This happened for a good month.
Did your friend take a Wifi access point with him?
The iPhone will use Wifi to locate you when GPS is not available. If a Wifi base station is moved, it may still be in Apple's database at the old location, so the device may think it's at that old location until it uses GPS.