Use your phone when it's locked
You can use certain features of your phone when it is locked, without having to enter the security
code.
To wake up your phone, press the power key.
Open the camera
Press and hold the camera key.
Change how incoming calls are notified
Press the volume keys, and tap , , or .
Pause or resume music, or skip to another song
Use the music player controls displayed at the top of the screen.