Samsung Galaxy S21+ 5G - Lock or unlock your device

Lock or unlock your device
Use your device’s screen lock features to secure your device. By default, the device
locks automatically when the screen times out. Learn more: Lock screen and security
Side button
Press to lock.
Press to turn on the
screen, and then
swipe the screen to
unlock it.
Getting started
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Devices and software are constantly evolving — illustrations are for reference only.