If the map doesn't display the correct location of your device, there could be several reasons for this discrepancy. Firstly, check that the location services are enabled on the device. Secondly, ensure that the device is connected to the internet through Wi-Fi or mobile data. If the issue persists, refresh the Android Device Manager page or log out and back in. Please note the displayed location is an approximation and might not be exact; physical barriers and signal strengths can affect the accuracy.