Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. You probably already know how to scan a QR code with your phone. It ...

When you’re asked to help with a tech issue, it’s a lot easier if you can see and control the screen. When you’re asked to help with a tech issue, it’s a lot easier if you can see and control the ...

You don't need your phone to open a QR code. You probably already know how to scan a QR code with your phone. It's simple enough: just open the camera app, point your phone at the code, and tap the ...