The disclosure is directed to a method of providing location information for a mobile electronic device and a mobile electronic device using the same method. In one of the exemplary embodiments, the mobile electronic device would receive a first signal that indicates capturing a multimedia file. In response to receiving the first signal, the mobile electronic device would transmit to an external device a second signal in response to receiving the first signal. In response to transmitting the second signal, the mobile electronic device may receive from the external device a first location information or an ephemeris. The mobile electronic device may then determine the first location information either based on the first location information as received or based on the ephemeris. Also, the mobile electronic device may associate the multimedia file with the first location information.