User manual

 Trusted devices. If you have added trusted devices, for example, your
device will be kept in unlock mode. (Note: Bluetooth connections have a range
of up to 100 meters.)
 Trusted voice. Sa ve it on your Google account. When you
our device will be unlocked once it recognizes
your voice.
Note: When Smart Lock is on, your phone will remain unlocked if you're carrying the
phone, which will quickly drain your phone's battery. This will also lead to accidental
commands if you put the phone in your pocket. Therefore, if you want to use Smart
Lock, use it wisely and properly.
8.1.3. Payment protection
While you shop online, your OPPO phone will provide protection for the mobile
transactions, such as detecting the system, captcha and, app security. You can see
the detected information of the current payment environment on the uapper-right
corner of the screen.
Set up payment protection for apps. Go to [Settings] > [Security] > [Payment
Protection]. View
and do as what the phone prompts to remove the risks.