How to access your Android phone's hidden "Testing" menu

Most smartphone users rarely discover all the things that their handsets are capable of. But that's OK: as long as a smartphone does what its owner wants it to do, there's no real need for other things. Still, if you have the time and the curiosity to dig deeper into the insides of your phone's software, you may find things that you didn't know were there.

All mobile phones have some secret codes that don't come with the manual, so it's no wonder that such codes work on Android smartphones. We'll now show you a code that reveals a hidden Android Testing menu ("testing" is literally the ...