Mobile Device Unlock: Samsung Galaxy S III

Learn how to use the Mobile Device Unlock code of the Samsung Galaxy S III.



SIM unlock phone

  1. Determine if devices are eligible to be unlocked: Mobile Device Unlock app.
  2. Contact Customer Care to request the Mobile Device Unlock code for your phone.
  3. Verify the IMEI by typing *#06#.
  4. Insert a Non-T-Mobile SIM & turn the phone on. The phone will automatically prompt you to enter the code into an  empty field.
  5. Tap in the empty field above Unlock &  Dismiss.
  6. Input the unlock code provided by T-Mobile.
  7. Tap the Back button to remove the keyboard from screen.
  8. Tap Unlock. The phone will display Network Unlock Successful.