Mobile Device Unlock: T-Mobile SpringBoard

Learn how to use the Mobile Device Unlock code of the T-Mobile SpringBoard.




SIM unlock phone


The Mobile Device Unlock code allows the device to use a SIM card from another wireless carrier. This may be necessary when traveling internationally. To enter the Mobile Device Unlock code, follow these steps:


Important: Stop if you receive an error message. The device may lock permanently if you enter the incorrect code multiple times.


  1. See if your phone is eligible to unlock: Mobile Wireless Device Unlocking.
  2. Contact Customer Care to request the Mobile Device Unlock code for your phone.
  3. Turn the tablet off.
  4. Insert the SIM card from the other wireless carrier.
  5. Turn the tablet on again.
  6. The SIM network unlock PIN screen will appear.
  7. Tap the SIM network unlock PIN field and enter the code provided by T-Mobile Customer Care.
  8. Tap Unlock.