Apple Iphone 6s Unlocked here. Google has released an update to its Android software allowing owners to unlock their phone with their voice 'We've heard from multiple users that the fully formed feature is rolling out,' said. 'Tapping the option under smart lock will take users to the Google app's settings. 'A warning advises that trusted voice unlocking is less secure than other options, but just a couple taps and you'll be able to unlock and execute commands on your secured device by simply uttering 'OK Google.' ' However, even Google admits the feature is not as secure as other password options. 39 shares The popup when you enable 'Trusted Voice' warns that the feature is not as secure as a traditional lock screen and that 'Someone with a similar voice could unlock your device.' • Google also offers an alternative way to unlock an Android phone - and it involves using your face. Can At&t Unlock My Phone In Store.