Cell phone location is fixed cell phone card
There are two kinds of GPS location for mobile phones:
1. The number signal used by the mobile phone to determine the location is actually judged according to the location of the base station. This positioning error is relatively large, generally more than 500M.
2. GPS chip positioning of the phone itself. This positioning is achieved using the GPS system in the United States. The error is generally within 20M.
Both of these methods can be used to achieve positioning, but the first one is rarely used today. Because the error is too large. The technology is not mature. The second is the mainstream way, and the navigation function on many mobile phones is achieved in the second way.
Another added note: No matter which way, the shutdown can not be located.