Mobile Device Unlock: T-Mobile Sonic 4G Mobile HotSpot

Learn how to use the Mobile Device Unlock code of the T-Mobile Sonic 4G Mobile HotSpot.




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. Place the non-T-Mobile SIM card into the Mobile HotSpot.
  4. Open a Web browser and navigate to http://mobile.hotspot, or use the T-Mobile HotSpot Admin shortcut to access the T-Mobile HotSpot Admin page.
  5. Click Settings > Security > Unlock Device.
  6. Enter the unlock code into the field labeled Device Unlock code.
  7. Click Apply.                                                    3.PNG.png