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How to Unlock a Samsung phone

A person holding a flip phone with a visible screen, in front of a product box featuring figures.

Watch this video to learn how to unlock your Samsung phone. Power up the phone. It shows the boot logo. Take the battery out and insert T-Mobile SIM card. Turn phone on. Shows welcome. Confirm T-Mobile by dialing 611. To unlock phone: Take out the battery and SIM card. Put in an AT&T SIM card. Put the battery back into the phone. Turn on the phone. It says," wrong card". Dial *2767*3855#. The phone will reboot after 15 seconds. Screen says, "Welcome to T-Mobile". To keep service dial *7465625*638* (8) zeros* (8) zeros#. Message says, "Network lock personalizes". Click cancel #7465625*638* (8) zeros#. Network lock deactivated. Check if everything was done correctly. *#7465625# Network lock inactive, subset lock inactive, SIM lock inactive. Reboot phone. Phone boots up.

Viewer learns how to unlock a Samsung phone.

Apple's iOS 26 and iPadOS 26 updates are packed with new features, and you can try them before almost everyone else. First, check our list of supported iPhone and iPad models, then follow our step-by-step guide to install the iOS/iPadOS 26 beta — no paid developer account required.