The Phone Lock feature helps prevent unauthorized use of the device by disabling user initiated outbound data and the ability to make calls. The device is still able to receive calls and place emergency 911 calls.
From the main screen, select MENU.
Utilize the 5-way navigation pad to highlight and the OK button to select.
Select Settings & Tools.
Select Phone Settings.
Enter the Lock Code then press OK.
The default code is the last 4 digits of the mobile number.
Select Lock Mode.
Select Device then select an option:
Turns on phone lock.
Turns off phone lock.
On Power Up
The phone is locked when it's powered on.