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Learn how you could lock/unlock the display screen of the Samsung Galaxy S II.

Most of the time when we walk about we usually place the phone in our pocket. If the screen is not locked you could accidentally make a call to a random number or someone on the contact list.

Sometimes I get a call from a friend who unintentionally make a call while having the phone in their pocket. I could hear them walking and talking to someone next to them but they are not aware that the call is active. To prevent you from costing money, here's how you could lock up the device before placing them in your pocket:

Locking the device:

1. Press the Power/Lock button. It is on the right hand side of the device.

Unlocking the device:

1. Press the Home button or the Power button, following by using your finger and flick the screen.

Your screen should now be unlocked.