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Lock SIM cards

You can lock your device's SIM cards to prevent someone else from using them. After you set it up, you'll need to enter a PIN on the lock screen for each SIM that's locked.

Set up SIM lock

  1. Open your device’s Settings menu Settings.
  2. Under "Personal", touch Security > Set up SIM card lock.
  3. If you have more than one SIM installed, the tabs at the top of the screen display each SIM's name. Touch the tab for the SIM that you want to lock.
  4. Touch Lock SIM card.
  5. If you haven't set up a PIN yet, enter a PIN and touch OK.

If you want to change the PIN for a SIM card, touch Change PIN and enter a new PIN. You'll need to enter the old PIN first.

Unlock SIM to use device

You'll be prompted to unlock the SIM card on the device's lock screen. If both SIMs are locked, you need to unlock SIM 1 before unlocking SIM 2.

Aaron is an Android expert and author of this help page. Leave him feedback below about the page.

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