Here is how Android's cool automated SIM lock safety works

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TL;DR

The newest Android Canary construct contains an automated SIM lock safety characteristic. This characteristic saves you from having to enter your SIM card’s PIN when rebooting your cellphone. This comes a number of weeks after we first uncovered proof of the characteristic.

Google has enabled the automated SIM lock safety characteristic within the newest Android Canary construct. The characteristic is accessible by tapping Safety & Privateness > Extra safety & privateness > Shield SIM card. Take a look at the screenshots under.

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<img class="e_lg" decoding="async" loading="lazy" sizes="9.375rem" title="google preferred source badge light@2x" srcset="https://www.androidauthority.com/wp-content/uploads/2025/09/google_preferred_source_badge_light@2x.png 676w, https://www.androidauthority.com/wp-content/uploads/2025/09/google_preferred_source_badge_light@2x-64w-20h.png 64w" alt="google preferred source badge light@2x" src="https://www.androidauthority.com/wp-content/uploads/2025/09/google_preferred_source_badge_light@2x.png"/><img class="e_lg" decoding="async" loading="lazy" sizes="9.375rem" title="google preferred source badge dark@2x" srcset="https://www.androidauthority.com/wp-content/uploads/2025/09/google_preferred_source_badge_dark@2x.png 676w, https://www.androidauthority.com/wp-content/uploads/2025/09/google_preferred_source_badge_dark@2x-64w-20h.png 64w" alt="google preferred source badge dark@2x" src="https://www.androidauthority.com/wp-content/uploads/2025/09/google_preferred_source_badge_dark@2x.png"/> For the uninitiated, a SIM PIN differs from a cellphone’s unlock PIN and may be arrange on just about all bodily SIM playing cards. When you’ve enabled this PIN, it must be entered everytime you reboot your cellphone or while you put the SIM in one other cellphone. With no SIM PIN, you possibly can’t use your SIM card for cellphone calls, textual content messages, or cellular knowledge connectivity.

Nevertheless, it may be inconvenient to recollect your SIM card’s PIN along with different PINs and passwords in your life. Thankfully, that’s the place automated SIM lock safety is available in.

How does this SIM lock characteristic work? To arrange the characteristic, first faucet the Automated PIN administration toggle after which enter your cellphone’s passcode or scan your biometrics. When you’ve activated this toggle, you’ll be prompted to enter your SIM card’s present PIN. Haven’t arrange a SIM card PIN but? Then you possibly can faucet the use service default choice (see the third screenshot above) to make use of your community’s default code. The service’s default PIN is often 0000, 1234, 1111, or one other equally easy code.

Do you will have a PIN enabled in your SIM card? 48 votes

Sure

35%

No

58%

I do not know

6%

When you’ve entered your SIM card’s PIN and tapped OK, that’s it. Now, the Android OS will mechanically enter your SIM card PIN while you enter your system’s lock code upon rebooting. You may as well view the SIM card’s PIN by tapping the Present Android-managed PIN choice inside the Automated SIM lock safety part.

Automated PIN administration is clearly a really handy choice for Android cellphone customers, because it means you don’t want to recollect the SIM PIN (though it's best to nonetheless write it down someplace simply in case). Nevertheless, your SIM card PIN nonetheless must be entered if the cardboard is inserted into one other cellphone, providing you with a helpful layer of safety in case your cellphone is stolen. That is significantly helpful should you’re apprehensive about criminals accessing your two-factor codes.