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Don't forget to create a backup before resetting, losing or breaking your phone. Suitable apps are OTP auth (iOS) or andOTP (Android) (I do personally use and can recommend these two, but of course there are some other good apps as well). Use a TOTP app which allows you to backup a copy of your TOTP registrations (should be encrypted and password protected for obvious reasons).Always register at least two devices for redundancy (with TOTP, you can do this easily by just scanning the same QR code on any number of devices) If you lose your phone with Google Authenticator, recovering the app and regaining access to your accounts may seem daunting at first.Prefer TOTP (which you most likely did considering you used Google Authenticator).In general, using MFA is very recommended wherever possible. You will need to recover your facebook login by following their respective procedure (wich may be complicated or not working at all, because otherwise, other people than yourself could be able to do that as well which obviously would contradict the use of a second factor). Accounts with a phone number linked will need access to confirm the request through a free SMS. If you've lost your authentication app data (phone lost, stolen, broken or resetted without backup), have no second device registered and no backup whatsoever and didn't print out or save the backup codes and/or the TOTP secret - well, that's unfortunate. Click Disable second authentication factor.
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If I don't get you wrong, your facebook login should be affected as well, so you've got a facebook login issue, not a obdeleven one (since you are using your facebook account to authenticate with obdeleven). If you dont have 2FA enabled, youll be able to instantly log into your account by tapping the first option.