Install the battery.
Insert the battery into the opening on the back of the device, making sure the
connectors align (1). Gently press down to secure the battery (2).
Position the battery cover (3) and firmly slide it in until you hear a click (4).
Press and hold
Your device will turn on, search for Sprint service, and then show the unlock screen.
If your device is not yet activated, see "Activating Your Device" on page 4 for more
to turn the device on.