Support SUPPORT New to T-Mobile? Switching is easy Set up your device Using the app Sprint Migration Center All get started topics Ways to pay your bill All about your bill Line permissions Your T-Mobile ID Your PIN/Passcode All account resources topics T-Mobile Network In-flight texting and Wi-Fi Wi-Fi Calling International roaming Mobile Without Borders All network & roaming topics Find the right plan Neftlix on Us HotSpot plans Voicemail Use Mobile HotSpot All plans support topics Tutorials Troubleshooting Unlock your device Change your SIM T-Mobile eSIM All device assistance topics Account Hub I-Billing Home Office Internet Collaborate Line permissions All business support topics

Learn how to lock and unlock the SIM PIN on the HTC U11 life.

Change SIM PIN

  1. From any Home screen, tap the Apps icon.
  2. Tap Settings.
  3. Scroll to 'PERSONAL' and tap Security.
  4. Tap Set up SIM card lock.
  5. If unselected, select the Lock SIM card check box, enter the current PIN code and tap OK.
  6. Tap Change SIM PIN.
  7. Enter the old SIM PIN code. 1234 is the default SIM PIN code.
  8. Tap OK.
  9. Tap Change SIM PIN.
  10. Enter the old SIM PIN code.
  11. Enter the new SIM PIN code.
  12. Tap OK.
  13. Enter the new SIM PIN code again to confirm.
  14. Tap OK.

Turn on / off SIM PIN

The SIM PIN code can protect your SIM from being used in other devices. When you turn on the SIM PIN lock, the device prompts you to enter the code after turning it on.

  1. From any Home screen, tap the Apps icon.
  2. Tap Settings.
  3. Scroll to 'PERSONAL' and tap Security.
  4. Tap Set up SIM card lock.
  5. Tap the Lock SIM card check box to turn it on.
  6. Enter the current SIM PIN code and tap OK to turn it off.

Was this helpful?