How to upgrade BYD Speedpost Navigation How to upgrade BYD Speedpost Navigation How to use BYD Speedpost Navigation correctly: 1, fix the search signal, don't walk, because walking GPS is not easy to locate; 2. It is best to turn on the GPS receiving satellite signal module at the upper right of the back of the machine and receive the signal at a 90-degree angle with the machine; 3. Open the machine navigation interface and click on the upper right corner of the navigation interface. Signal board, you can see the satellite number map, normal 3 positioning, 5 navigation GPS can normally receive 7- 12 satellite navigation signals, which is stable and sufficient; 4. When driving a motor vehicle or riding a bicycle, it is recommended not to operate the navigation system to ensure driving safety. @20 19