1. Download the lazy package and unzip it to the SD/TF root directory. Generally, there are two folders (NaviOne, ui) and 1 boot file maplaunch.ini；; 2. Download special software and modify it according to your navigator port and speed. The file name is naviconfig.dll and the path is navione/naviresfile/naviconfig.dll.: 3. Open the boot file maplaunch.ini with Notepad software, check whether the boot paths are consistent, and then go to the computer.