How do you put a password on your samsung phone?

P

Pregnant With #2

New member
My friend has a Samsung, I think it's Sgh A737.. I use to have one, but I don't remember how to put a password on the phone. She doesn't want a password for messages or pics, she wants a password you have to type in before you can get on the phone. I can't remember, and we're talking on facebook... So I can't play with it to find out...

Anyone know Step by step, or any ideas?
 
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