How I use this hidden Android security feature to easily turn off sensors - and where to enable it

Open the Settings app. You can do this by either tapping Settings within the App Drawer, or tapping the gear icon in the Notification Shade. From within Settings, tap "About phone," and then scroll to ...
PCMag

Did You Know Your Phone Has Secret Codes That Can Unlock Hidden Features?

By entering certain strings of numbers and symbols into your phone's dialer, you can gain access to a world of hidden ...