How do I manually restart the 3g gps tracker when the link is abnormal? How do I restore factory Settings when I send an incorrect command? Today, Sward Xiaobian will teach you. First, GPS locator restart method What should I do if the 3g gps tracker has an abnormal GPRS link? Some people may not know what the performance of GPRS exception is, 3g gps trackerGPRS exception is generally...