How to Register Yubikey to your T-Mobile Account

How to Register Yubikey to your T-Mobile Account

Step 1: Go into the designated T-Mobile Kiosk on your site
Step 2: Login your T-Mobile email and password(if having issue with logging in, please call T-Mobile Service Desk)
Step 3: Once successfully logged in, wait for the browser to popup and wait for the 1-minute countdown to finish.
Step 4: Click COPY and CONTINUE
Step 5: Paste the temporary password on the next screen then hit "Enter"
Step 6: Once on the O355 dashboard, click + Add sign-in method
Step 7: Choose "Security key" as your method
Step 8: Select "USB device"
Step 9: Click "Next"
Step 10: Select "Security Key" on the next pop-up
Screenshot of how to save a security key on Windows 11.

Step 11: Insert Security Key
Step 12: Click "OK" when prompted
Step 13: Type your unique security key PIN into the Windows security box, and then select OK.
Step 14: You'll return to the Setting up your new sign-in method box. Select Next.
Step 15: Return to the Security info page, type a name you'll recognize later for your new security key, and then select Next.
Step 16: Select Done to close the Security key page. The Security info page is updated with your security key information.

Note: If there's an existing Yubikey on your account, delete it if you're trying to register it again or if it is a new Yubikey

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