(Android device is connected to PC host through USB data cable, and the program for Android device of PC host to access the Internet. It is suitable for use in an environment without Wifi, saving mobile data traffic. 1. Enter the setting interface of Android device and open USB debugging mode. 2. Android devices use USB cable to connect to PC host. 3. The PC host downloads the software package, decompresses it, and runs the "androindtool. exe" program in the folder. The client on Android devices will be installed automatically. 4. Acknowledge that the Android device client automatically installs and starts normally. (Under normal conditions, the Android device can access the Internet through the PC host. PS: If the communication is abnormal, please restart the Android device or restart the PC program.)