ADB can control your device over USB from a computer, copy files back and forth, install and uninstall apps, run shell commands, and more. Once you've installed your device's drivers, plug in your phone and try the adb devices command again: For example, the command here pushes the file located at C:\file on your computer to /sdcard/file on your device adb pull /sdcard/file C:\file Pulls a file from your device to your computer—works like adb push, but in reverse.