To test your android apps which are under development, you can use the emulators or actual phones. Emulators are slow and not very flexible. So better option is connect a phone to your android studio and test the app on that. How do we enable this - debugging of the app using phone? In Linux platform, it is easier. You don't need to download any software to your laptop. The two step process is as follows. Step 1 : Enable usb debugging in the phone To enable usb debugging, you have to reveal and enable developer options in your phone. You have to go to settings and some where in the menu, you will get build number. You need to tap it 7 times. Now Developer options are enabled and shown in your menu. In developer options, enable usb debugging. Step 2 : Add the Vendor id of your phone to udev rules file Connect your phone using usb port. Now give lsusb command. It will list all usb devices connected. lsusb Bus 001 Device 006: ID 0bda:0129 Realtek Semiconductor C