You are using the manufacturer-sanctioned path, reducing the risk of a "permabrick."
You will see a long string of characters. This is your device’s unique identifier. Step 2: Submit the Application
For carrier-locked devices, OnePlus often takes 7 to 14 days to process this request and email you the .bin file. This is the "better" and safest way to ensure you don't hard-brick your device using unofficial scripts. Step 3: Flash the Unlock Token
OnePlus devices, especially those sold through carriers like , have an extra layer of security. Unlike the "Global" or "International" versions where you can simply toggle a setting and run a command to unlock the bootloader, carrier-locked versions require a unique Unlock Token .
Now, you can finally run the magic command: fastboot flashing unlock
You may find tutorials online claiming to bypass this using "MSM Download Tools" to switch your firmware from T-Mobile to Global. While effective, this carries a high risk of losing your (meaning no HD Netflix) or breaking your OTA updates. Using the official token method ensures:
Visit the official OnePlus Unlock Token Service page. You will need to provide: Your IMEI number. The Unlock Code you just retrieved. A valid email address.
Your phone will display a warning screen. Use the volume buttons to select and press the Power button to confirm. Why This Is "Better" Than Bypassing
If you see "Please flash unlock token first," don't panic. It’s not a bug; it’s a gatekeeper. Apply for your token, wait for the email, flash the .bin file, and you’ll have a "better," fully unlocked OnePlus experience in no time.
Go to Settings > About Phone and tap "Build Number" seven times.