If the SIM PIN query is activated, the PIN of the SIM card is queried every time the Oppo Smartphone is started, and if the SIM lock is (not) desired, it can be activated or deactivated in the security settings.
Note: The current PIN is required to activate or deactivate the SIM PIN request! Without a PIN, it is not possible to change the function.
- Open the Settings
- Tap on Security
- Tap on SIM card lock
- Choose between SIM1 and SIM2
- Enable or Disable Lock SIM card
- Enter SIM PIN and confirm with OK