Apple’s VoiceOver feature is designed for those who are visually impaired. When the feature is turned on, a voice will let users know what is on the screen and allow them to navigate their iDevice. However, VoiceOver can also be used by anyone to unlock their iPhones by drawing their passcodes with their finger—especially those who are jealous of the ability of Android users to unlock their phones by drawing on their lock screen.
To set this up, go to Settings > General > Accessibility, then scroll down and tap on Accessibility Shortcut. Tap on VoiceOver to activate the triple-click shortcut for this feature. Now you can turn VoiceOver on and off by triple clicking the Home button.
Next, go back to Accessibility and go to VoiceOver > Rotor and make sure Handwriting is checked. (The Rotor will let you access any of the checked options by rotating two fingers on the screen as if you were turning an actual dial until it says the option you want.)
Then, when it’s time to enter your password, triple click the Home button to activate VoiceOver and turn the Rotor until it says Handwriting. Now you can use your finger to draw the numbers of your passcode on the screen.
For most of us, this is just a fun way to unlock our iPhones. For those who are visually impaired and using an iDevice that doesn't have Touch ID, this is a great way to keep your passcode private. Otherwise, VoiceOver will read the passcode as you type it in, loud and clear for all to hear.
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