Learn how to unlock your wireless mobile device for use on other carriers (formerly SIM Unlock).
We're committed to providing you with clear information about how to unlock your mobile wireless phones, tablets, and mobile Internet devices for use across different mobile carriers. Most mobile devices are programmed to prevent the device from operating with another wireless carrier's network without first obtaining an unlock code.
Mobile carriers typically use different frequencies and technology to provide wireless network access. So, not all phones, tablets, and mobile Internet devices are compatible between every mobile carrier. For more information about compatibility with T-Mobile’s network, see Bring Your Own Device. Even if your phone, tablet, or mobile Internet device is compatible between carriers, some functionality of your device may not operate the same on a different mobile carrier’s network. Please review your device functionality with any new carrier's network to make sure that the services are operating as expected.
To obtain an unlock code for your mobile wireless phones, tablets, or mobile Internet device, contact the mobile carrier or manufacturer who sold you the device. The original carrier or manufacturer can provide you with instructions and specific information on how to unlock the device for use with another mobile carrier. If you purchased your device from T-Mobile, or if you have a T-Mobile authorized device, follow the steps outlined below to determine whether you're eligible to receive an unlock code for your device.
We provide mobile device unlock codes free within two business days (or provide further information about timing) for eligible devices.
Device eligibility is determined as follows:
Unlock eligibility for Pay in Advance (Prepaid) phones, tablets, and mobile Internet devices
Military and other exceptions: Deployed military personnel who are customers in good standing are eligible to have their devices unlocked upon provision of deployment papers. Exceptions to some or all requirements may apply in other circumstances for Business and Government Accounts. Please contact us for more details.
If your device meets the eligibility requirements, use the Mobile Device Unlock app to unlock your device. If your device isn't supported, contact us to request an unlock code, and steps to unlock your device. Keep in mind, this policy is subject to T-Mobile’s Terms and Conditions of service and may change without notice. T-Mobile may deny any request for a mobile device unlock code at our sole discretion if the request is an effort to defraud the company.
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