When the Samsung device is restarted, depending on the phone provider's default settings, the PIN for the SIM card must be entered to unlock it. this is to prevent unauthorized persons from using the SIM card and to avoid a surprise on the next phone bill. If the Samsung device is protected by a display lock, a SIM card PIN is unnecessary and can be deactivated. this guide shows how to enable/disable the SIM card PIN query. the current PIN of the SIM card is required for this.
- Open the Settings
- Tap on Biometrics and security
- Tap on Other security settings
- Tap on Set up SIM card lock
- Enable or disable Lock SIM card
- Enter SIM card PIN and confirm with OK