PIN & password: T-Mobile Prism

Learn how to lock, unlock, and PUK unlock the T-Mobile Prism. Find out more on this page.

 

Device lock

PUK code unlock

SIM PIN

 

 

Device lock

Change device lock password / PIN

To change device lock password or PIN, follow these steps:

 

  1. From any Home screen, tap the Menu key.
  2. Tap Settings.
  3. Tap Location & security.
  4. Tap Set up screen lock.
  5. Tap one of the following options:
  • PIN:
    1. Enter the desired number combination.
    2. Tap Continue.
    3. Re-enter the number combination.
    4. Tap OK.
  • Password:
    1. Enter the desired password.
    2. Tap Continue.
    3. Re-enter the password.
    4. Tap OK.

 

 

Turn on / off device lock

To turn on or turn off the device lock password or PIN, follow these steps:

 

  1. From any Home screen, tap the Menu key.
  2. Tap Settings.
  3. Tap Location & security.
  4. Tap Set up screen lock.
  5. Tap None to turn off.

 

 

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PUK code unlock

PUK code unlock

Related errors:

  • 'PIN code blocked. Enter PUK code:'
  • 'Enter PUK code'
  • 'SIM card locked. Emergency calls only. Please contact Customer Care'

 

If you enter a PIN code incorrectly several times in a row, the device blocks you from attempting again. To enter a PUK code and unblock the PIN, follow these steps:

 

Important: You must call Customer Care for the PUK code. Entering the wrong code can permanently damage your SIM card.

 

  1. Contact Customer Care to request your PUK code.
  2. Press Phone to open the dialer.
    Note: If your phone is not yet PUK locked, touch Emergency Call on the screen where you enter the PIN code.
  3. Enter **05*[PUK]*[New PIN]*[New PIN]#.
  4. When the phone displays 'Unblocking PIN: Registration was successful' touch OK.

 

 

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SIM PIN

Change SIM PIN

To change the SIM PIN code, follow these steps:

 

  1. From any Home screen, tap the Menu key.
  2. Tap Settings.
  3. Tap Location & security.
  4. Tap Set up SIM card lock.
  5. Tap Change SIM PIN.
  6. Enter your current SIM PIN.
    Note: The default SIM PIN is 1234.
  7. Tap OK.
  8. Enter the new SIM PIN.
  9. Tap OK
  10. Re-enter the new SIM PIN.
  11. 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.

 

To lock and unlock the SIM card, follow these steps:

 

  1. From any Home screen, tap the Menu key.
  2. Tap Settings.
  3. Tap Location & security.
  4. Tap Set up SIM card lock.
  5. Tap Lock SIM card.

 

 

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