Mobile Device Unlock: Samsung Galaxy S9

Learn how to use the Mobile Device Unlock code of the Samsung Galaxy S9.

SIM unlock phone

1. Determine if devices are eligible to be unlocked:Unlock your mobile wireless device.
2. From the Home screen, swipe up on an empty spot to open the Apps tray.
3. Tap T-Mobile folder > Device Unlock > Continue.
4. Wait while the device connects to the server.
5. Choose the desired device unlock type:
   • Permanent Unlock
   • Temporary Unlock - requires a mobile data connection
6. Wait while the device requests the unlock.
7. If successful, restart the device to apply the settings.
   • Permanent Success
   • Temporary Success
8. If you do not restart the device, a persistent alert will appear in the notification tray.