GPS map upgrade

　　GPS map is a brand-new geographic information carrier produced with the development of computer technology. GPS map is born out of map, and the map is stored and presented in digital form, and can only be used in computer. GPS maps have the functions of display, transmission and analysis. GPS maps can provide better presentation methods than traditional maps, such as zooming in, zooming out, roaming, searching, and path planning.

　　Method 1: Look for after-sales upgrade of hardware brands There are many ways to upgrade after-sales hardware. Taking Da Gama as an example, there are three ways: Method 2: Go to Kay Rucker's agent upgrade service outlets to upgrade. Method 3: Call the customer service number of the electronic map company or Da Gama company, and send the CD-ROM