To use ADB with your Android device, you must enable a feature called "USB Debugging." Open your phone's app drawer, tap the Settings icon, and select "About Phone." Scroll all the way down and tap ...

To enable file-sharing over Bluetooth on your PC, head into Settings > Bluetooth & Devices and turn on the "Bluetooth" toggle. Then, click "Add Device" and pair the other device. To send a file from ...

When you write your name in the air, you can see the letters appear on your smartphone. By Cade Metz Reporting from San Francisco The prototype looks like a giant rectangular wristwatch. But it ...