Mobile Device Unlock: Samsung Galaxy Note 4

Learn how to use the Mobile Device Unlock code of the Samsung Galaxy Note 4.



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.


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


  1. Determine if devices are eligible to be unlocked: Mobile Wireless Device Unlocking.
  2. Contact Customer Care to request the Mobile Device Unlock code for your phone.
  3. Insert a Non-T-Mobile SIM and turn the phone on.
  4. Check the IMEI to make sure that it matches what was provided with the SIM unlock code.
  5. The phone will automatically prompt you to enter the code into an  empty field.
  6. Tap in the empty field above Unlock & Dismiss.
  7. Input the unlock code provided by T-Mobile.
  8. Tap the Back button to remove the keyboard from screen.
  9. Tap Unlock.
  10. The phone will display Network Unlock Successful.