- [Support](https://www.t-mobile.com/support) - [Get started](#) - [New to T-Mobile?](https://www.t-mobile.com/support/new-to-tmobile) [Switching is easy](https://www.t-mobile.com/support/new-to-tmobile/family-freedom) [Set up your device](https://www.t-mobile.com/support/new-to-tmobile/device) [Using the app](https://www.t-mobile.com/support/plans-features/t-mobile-app) [All get started topics](https://www.t-mobile.com/support/new-to-tmobile) - [Account resources](#) - [Ways to pay your bill](https://www.t-mobile.com/support/account/pay-your-bill) [All about your bill](https://www.t-mobile.com/support/account/whats-impacting-your-bill) [Line permissions](https://www.t-mobile.com/support/account/set-online-permissions) [Your T-Mobile ID](https://www.t-mobile.com/support/account/set-up-and-manage-your-t-mobile-id) [Your PIN/Passcode](https://www.t-mobile.com/support/account/update-your-customer-pinpasscode) [All account resources topics](https://www.t-mobile.com/support/account) - [Network & roaming](#) - [T-Mobile network](https://www.t-mobile.com/support/coverage/t-mobile-network) [In-flight texting and Wi-Fi](https://www.t-mobile.com/support/coverage/t-mobile-in-flight-texting-and-wi-fi) [Wi-Fi Calling](https://www.t-mobile.com/support/coverage/wi-fi-calling-from-t-mobile) [International roaming](https://www.t-mobile.com/support/coverage/international-roaming-services) [Mobile Without Borders](https://www.t-mobile.com/support/coverage/mobile-without-borders) [All network & roaming topics](https://www.t-mobile.com/support/coverage) - [Plans support](#) - [Find the right plan](https://www.t-mobile.com/support/plans-features/find-the-right-plan-for-you) [Netflix on Us](https://www.t-mobile.com/support/plans-features/netflix-on-us) [HotSpot plans](https://www.t-mobile.com/support/plans-features/mobile-internet-plans-for-hotspots) [Voicemail](https://www.t-mobile.com/support/plans-features/voicemail) [Use Mobile HotSpot](https://www.t-mobile.com/support/plans-features/smartphone-mobile-hotspot-wi-fi-sharing--tethering) [All plans support topics](https://www.t-mobile.com/support/plans-features) - [Device assistance](#) - [Tutorials](https://www.t-mobile.com/support/tutorials) [Troubleshooting](https://www.t-mobile.com/support/phones-tablets-devices/troubleshooting) [Unlock your device](https://www.t-mobile.com/support/devices/unlock-your-mobile-wireless-device) [Protect your device](https://www.t-mobile.com/support/devices/protectionandlt360andgt-and-device-protection) [SIM card & eSIM](https://www.t-mobile.com/support/devices/sim-esim) [All device assistance topics](https://www.t-mobile.com/support/phones-tablets-devices) - [Business support](#) - [Get T-Mobile for Business](https://www.t-mobile.com/support/business/new-to-business) [Billing and payments](https://www.t-mobile.com/support/business/billing) [Manage your account](https://www.t-mobile.com/support/business/account) [Orders and shopping](https://www.t-mobile.com/support/business/orders-shopping) [Account Hub registration](https://www.t-mobile.com/support/business/account-hub-registration) [All business support topics](https://www.t-mobile.com/support/business) [SUPPORT](https://www.t-mobile.com/support) - [Get started](#) - [New to T-Mobile?](https://www.t-mobile.com/support/new-to-tmobile) - [Switching is easy](https://www.t-mobile.com/support/new-to-tmobile/family-freedom) - [Set up your device](https://www.t-mobile.com/support/new-to-tmobile/device) - [Using the app](https://www.t-mobile.com/support/plans-features/t-mobile-app) - [All get started topics](https://www.t-mobile.com/support/new-to-tmobile) - [Account resources](#) - [Ways to pay your bill](https://www.t-mobile.com/support/account/pay-your-bill) - [All about your bill](https://www.t-mobile.com/support/account/whats-impacting-your-bill) - [Line permissions](https://www.t-mobile.com/support/account/set-online-permissions) - [Your T-Mobile ID](https://www.t-mobile.com/support/account/set-up-and-manage-your-t-mobile-id) - [Your PIN/Passcode](https://www.t-mobile.com/support/account/update-your-customer-pinpasscode) - [All account resources topics](https://www.t-mobile.com/support/account) - [Network & roaming](#) - [T-Mobile network](https://www.t-mobile.com/support/coverage/t-mobile-network) - [In-flight texting and Wi-Fi](https://www.t-mobile.com/support/coverage/t-mobile-in-flight-texting-and-wi-fi) - [Wi-Fi Calling](https://www.t-mobile.com/support/coverage/wi-fi-calling-from-t-mobile) - [International roaming](https://www.t-mobile.com/support/coverage/international-roaming-services) - [Mobile Without Borders](https://www.t-mobile.com/support/coverage/mobile-without-borders) - [All network & roaming topics](https://www.t-mobile.com/support/coverage) - [Plans support](#) - [Find the right plan](https://www.t-mobile.com/support/plans-features/find-the-right-plan-for-you) - [Netflix on Us](https://www.t-mobile.com/support/plans-features/netflix-on-us) - [HotSpot plans](https://www.t-mobile.com/support/plans-features/mobile-internet-plans-for-hotspots) - [Voicemail](https://www.t-mobile.com/support/plans-features/voicemail) - [Use Mobile HotSpot](https://www.t-mobile.com/support/plans-features/smartphone-mobile-hotspot-wi-fi-sharing--tethering) - [All plans support topics](https://www.t-mobile.com/support/plans-features) - [Device assistance](#) - [Tutorials](https://www.t-mobile.com/support/tutorials) - [Troubleshooting](https://www.t-mobile.com/support/phones-tablets-devices/troubleshooting) - [Unlock your device](https://www.t-mobile.com/support/devices/unlock-your-mobile-wireless-device) - [Protect your device](https://www.t-mobile.com/support/devices/protectionandlt360andgt-and-device-protection) - [SIM card & eSIM](https://www.t-mobile.com/support/devices/sim-esim) - [All device assistance topics](https://www.t-mobile.com/support/phones-tablets-devices) - [Business support](#) - [Get T-Mobile for Business](https://www.t-mobile.com/support/business/new-to-business) - [Billing and payments](https://www.t-mobile.com/support/business/billing) - [Manage your account](https://www.t-mobile.com/support/business/account) - [Orders and shopping](https://www.t-mobile.com/support/business/orders-shopping) - [Account Hub registration](https://www.t-mobile.com/support/business/account-hub-registration) - [All business support topics](https://www.t-mobile.com/support/business) [Support](https://www.t-mobile.com/support/) [Devices](https://www.t-mobile.com/support/community/phones-tablets-devices) # PUK code unlock 0 Added! [](https://www.t-mobile.com) ### Manage Links Click any [available links](https://www.t-mobile.com) to add. Click any [added links](https://www.t-mobile.com) to remove. Links with [no highlight](https://www.t-mobile.com) can't be sent. Done (0 Links) If a SIM PIN security code has been entered incorrectly multiple times, the SIM will lock and require you to enter a PUK code to use your device again. Be careful! If you incorrectly enter your PUK code 10 times, your SIM will need to be replaced. 1. Make sure the device is asking for a PUK. If it's asking for a PIN, try the default SIM PINs of '1234' or '5678'. 2. If you get a prompt about a PUK code or your SIM is locked, [Contact Us](http://www.t-mobile.com/Contact.aspx) to request your PUK code. 3. If you're prompted to enter the PUK code, enter it. You may need to attempt a phone call before you are prompted to enter the code. - Enter your PUK code in the __\[PUK]__ field. - Enter your SIM New PIN code in the __\[New PIN]__ field. You must enter it twice. 4. If you're not prompted to enter a PUK code, open the phone dialer and enter SIM 1 __\*\*05\*\[PUK]\*\[New PIN] \*\[New PIN]#__ or SIM 2 __\*\*052\*\[PUK2]\*\[New PIN2]\*\[New PIN2]#__. - [USSD short codes](https://www.t-mobile.com/support/plans-features/self-service-short-codes) must be enabled on your device for the PUK unlock code to work. * * * Was this helpful? * * * ## Can't find what you're looking for? - [Contact Us](https://www.t-mobile.com/contact-us) - [Ask our community](https://www.t-mobile.com/community/)