Blu vivo air lte User Manual page 35

Location
 High Accuracy – Use Wi-Fi and Mobile Networks to determine location.
 Battery Saving – Use Mobile Networks to determine location.
 Device Only – Use GPS to determine your location.
Security
Set up basic screen locks: Use slide, pattern, PIN or password to lock the screen.
 Pattern: The initial set up will include simple unlock instructions and examples. Click to continue
the security pattern step. Note: You can add additional pattern security at power on.
 PIN: Enter a PIN number to unlock the screen
 Password: Use a password to unlock the screen
Note: You may stop this security feature at any time.
Set up SIM card PIN lock
 SIM card PIN (Personal Identification Number) is used to prevent unauthorized use of SIM card.
To change a blocked PIN code, you will need to unlock the SIM lock then go to the Change Password
screen. The phone will automatically prompt you enter the old PIN code and ask to enter a new PIN code
twice. The phone will then prompt you that the change was successful. If you enter the PIN incorrectly three
times, the SIM and PIN codes will be automatically locked. You will need the PUK code to unlock the phone
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