Oppo How to Turn On/Off SIM card lock
Oppo 4006
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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.
Android 11 | ColorOS 11.0
- Tap on Settings
- Tap on Security
- Tap on SIM card lock
- Choose a SIM card (Dual SIM)
- Enable or disable Lock SIM card
- Enter the PIN and tap Save