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Once the privacy password has been set, it can be changed at any time afterwards. As with the screen lock, the Oppo smartphone also offers the option to use a pattern, password or PIN as the privacy password.

Android 11 | ColorOS 11.0
Step 1: Tap on  Settings
Step 2: Tap on  Password & biometrics
Step 3: Tap on  Privacy password
Step 4: Tap on  Change password  and follow the instructions on screen
  1. Tap on Settings
  2. Tap on Password & biometrics
  3. Tap on Privacy password
  4. Tap on Change password and follow the instructions on screen
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Oppo Instructions