Samsung SPH-L520ZWASPR - Manual (Page 16)

Turn the Phone On
Use the Power/Lock Key to turn the phone on.
 Press and hold the Power/Lock Key
to turn the phone on.
 If your phone is activated, it will turn on, search for Sprint service, and begin the
setup application.
 If your phone is not yet activated, see Activate Your Phone for more information.
Get Started 5