Open the Settings app to Security & privacy. Tap Secure device to engage the Android lock screen, which is useful if your phone is lost and unlocked. Also available from this page are options to play ...

A new recovery feature lets you choose trusted friends or family members to verify your identity if you're locked out of your Google account.

ZDNET's key takeaways Use these codes to forward calls, pay your bill, check balances, etc.Some of the codes work only on certain carriers or devices.One of the codes also might erase your data, so ...