Android 4.0+ system Open USB method
1. "Application"-"set"-"General"-"About equipment"-click "Build Number" seven times continuously until prompted "developer mode enabled." -You can see "Developer Options"-"USB Debugging"-"OK" to turn on the "USB debugging" option.
android4.0 Previous version usb Open method
1. Before connecting to the computer, we need to set the USB mode, click on the mobile phone "application" as shown in the following image.
2. Then we click the "Set" menu in the application.
3. Click the "Apps" menu in the Setup Panel and enter.
4. Then we open the "development" option again.
5. In the development of our click on "USB Debugging", "green hook" means open.
6. Open mobile phone assistant, use the data line to connect the handset with the computer.
After completing the above operation, your mobile phone is connected with mobile phone assistants successfully.