If you're having trouble logging into your Facebook account, review these tips first. If you've turned on two-factor authentication, there are several ways you can get your security code or approve your …

With device login, your device shows an alphanumeric code and tells people to enter it on a web page on their desktop PC or smartphone. People using your app or service can then grant permissions.

If your mobile number is already linked to your Facebook account, we'll reply with a unique, 6-character temporary password. If you haven't added this mobile number to your account, we'll send you an …

Learn more about how you can get your security code if you've turned on two-factor authentication.

Get security code for two-factor authentication to log into Facebook Using an app for two-factor authentication on Facebook Set up Facebook login recovery codes When and why to save your …

Either insert your security key into your computer and activate it by touching it, or if you have an NFC key, hold it near your computer's sensor (the location of the NFC sensor depends on your device).

When you save your device information, we'll be able to recognize you the next time you login. Find out more about 2FA or how to get alerts for unrecognized logins.

Learn more about how to get Facebook recovery login codes to use when you don't have your phone.

A third-party authentication app (such as Google Authenticator or LastPass) can be used to generate login codes that help us confirm it's you when you log in from a new device for the first time.

The most secure method is to set up multiple keys for your account. If you don't have a second key, you can enroll in another two-factor authentication security method such as text message (SMS) codes …