If powered off, press and hold the red Phonebutton .
From the Phone Activation screen, select OK.
If prompted, enter the last 4 digits of the account owner's social security number or the billing password.
If activating a new phone, ensure the old phone is powered off and allow several minutes for the deactivation of the old phone to complete.
If presented with 'Location consent', review the disclaimer carefully and select Agree or Disagree as needed.
If preseneted 'Warranty setup' screen, complete the on-screen steps to register.