HTC Desire 612 User Manual page 42

42 Your first week with your new phone
You can also press and hold the lock icon, and then drag it up, right,
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or left.
If you've set up a screen lock, you'll be asked to provide your credentials
before HTC Desire 612 unlocks.
If you've set an event reminder or an alarm, you can snooze or
dismiss the event or alarm right from the lock screen. Just drag
or up.