how toSet Up a Used iphone 5?

[Bravl]

I just got a second hand iphone 5 from my sibling
but the previous user's data is still there
what should I do?
should I be aware of something ?
please help , i dont know much about these stuff

 

[Trebuin]

They should have wiped it. You may have to go into du to wipe it

 

[FoxFifth]

The following has instructions on what they should have done. If they had Find My iPhone (Activation Lock) turned on, you are going to need to contact the previous owner. http://support.apple.com/kb/HT5661