- [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/) [Device troubleshooting](https://www.t-mobile.com/support/support/devices/device-troubleshooting)
# Device lock and security troubleshooting
0
Added!
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### 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)
Get help if you're locked out of your device. If you are trying to unlock your device to use with other carriers, visit [T-Mobile device unlock](https://www.t-mobile.com/support/devices/unlock-your-mobile-wireless-device).
## Can't unlock your device
01. If you are receiving SIM card or PUK errors, check [PUK and SIM error troubleshooting](https://www.t-mobile.com/support/devices/device-troubleshooting/puk-and-sim-error-troubleshooting).
02. Turn off Bluetooth. If you can't, turn off all connected Bluetooth devices.
03. Make sure your password or PIN locks are entered correctly. For example, make sure caps lock is off.
04. For fingerprint recognition:
- Clean and dry the fingerprint scanner and your finger.
- Use the same finger that you used during setup.
- Touch and hold the sensor. If you do this too quickly, it may not have time to capture your finger.
05. Do not have any security features like __Find my Device__ or __Find my Mobile__ activated.
06. Enter your __Backup PIN__ or choose __Forgot Password__ if available.
07. __Android devices:__
1. Log in to the device's connected Gmail on a computer to make sure you have the correct information.
2. On your device, choose __Forgot Pattern__ on the lock screen.
3. Enter your Gmail username and password.
4. Record your new pattern.
08. __Apple devices__ check out [Apple Support](https://support.apple.com/en-us/HT204306 "https://support.apple.com/en-us/HT204306") for additional support.
09. If your device is still locked, follow our [tutorial to complete an external master reset](https://www.t-mobile.com/support/tutorials) using the hardware keys.
10. For Android and Apple devices, try to sign in to your account again. If you still cannot sign in, create a new account or contact the provider.
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