Discover the secret world of USSD codes that unlock hidden menus, features, and quick access to phone information on your Android device. Test these codes at your own risk, but be aware that any given ...

Impress your most tech-savvy friends with these secret smartphone codes they probably don’t know.

Here's how to easily access powerful tools, system info, and settings buried deep in your phone. I’m one of PCMag’s mobile writers. That means I check out phones, hotspots, and mobile networks.