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Device Unlock is an Android app that allows you to request and apply a mobile device unlock directly from the device. There is no Apple iOS version of this app available.


Things to know

The T-Mobile Device Unlock app comes pre-installed only on supported devices.

  • The app is not listed in the Play Store, if the app was installed on a device before, it may appear in My apps & games > Installed. But you cannot install the app from this location.
  • If the app is not listed, make sure it is not disabled or hidden on the device. The app will uninstall itself after a permanent unlock.

To use the app you need:

  • A T-Mobile account.
  • A T-Mobile Android device that supports the app and have the latest device software.
  • T-Mobile network coverage or a connection to a Wi-Fi network.
  • To meet device and account eligibility requirements.


Use the app

  1. Search for and select your device in Devices.
  2. Scroll down to How Tos and click Security.
  3. Look for and click Mobile Device Unlock.
    Note: If this link is not available, your device does not have the Mobile Device Unlock App. Check out how to contact us to request an unlock code.
  4. Follow the instructions to unlock your device.
  5. If you are having trouble unlocking your device, contact us at 1-877-746-0909 or check out our troubleshooting tips.

Temporary unlock expiration

  1. When a temporary unlock expires, you receive an expiration message.
  2. Tap OK. If a non T-Mobile SIM card is inserted, the device reboots.

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