How to lock / unlock Samsung Glyde

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Locking / unlocking the wireless device - Samsung Glyde (SCH-u940)
The Phone Lock feature helps prevent unauthorized use of the device by disabling outbound data and voice calls. The device will still be able to receive phone calls and place emergency calls to 9-1-1.
To lock the phone:

1. From the main screen, touch MENU.
2. TouchSettings & Tools.
3. Touch Phone Settings.
4. TouchSecurity.
5. Enter the Phone Lock Code (the default code is the last 4 digits of the cell phone number) then touch DONE.
6. Touch Phone Lock Setting.
   To lock the device immediately, touch Lock Phone Now.
7. Touch the preferred option:
   • Unlocked
   • On Power Up

To unlock the phone:

1. From the main screen, touch Unlock.
2. When prompted, enter the Phone Lock Code (the default code is the last 4 digits of the cell phone number).