Vivo 4.8 HD, Руководство пользователя

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the screen.

Pattern: The first time there will be simple unlock
instructions and examples.

PIN: Enter PIN number to unlock the screen.
You may stop the 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 which is available through your service
provider. If you enter the PUK code incorrectly 10 times, the SIM card
will be permanently locked. Please see your service provider for a
new SIM card.

Password visible
– Make the password visible when it’s
typed.

Use security credentials - Allow applications to visit
security credentials or other credentials.
Location Access

Access to my location
– App permission to location

When using the GPS satellite positioning, set accuracy to
street level (Cancel it to save battery).
Power Saving

Power Saving Settings
Battery

General power usage
Storage

View the phone memory usage.