Smartphone issued confirmation codes
Startup the 2 step verification app (Google Authentication or a compatible app) from your
smartphone and input the corresponding niconico 6 digit number.
Check the following below if you are unable to login after entering the 6 digit number:
・Are your smartphone date and time settings correct?
・Have the correct numbers been entered?
Email issued confirmation codes
Enter the 6 digit number included in the email sent to your account email.
If you fail to receive an email from niconico, it may have been allocated to your junk mail.
Please check the following Help URL for more information.
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Issued Back up codes
Users with a backup code (8 digit number) can login via the "Use backup code and login"
option from the 2 step verification screen.
*Backup codes can only be used once, so please be sure to use a new code.
*Please also review your 2 step verification settings after using your backup code to login.
If you do not have any backup codes and cannot login, feel free to contact us from the
"Contact Customer Support " link below for support.
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Contact Customer Support
