There is a 2-factor code generator built into the Facebook app for iOS and Android specifically to help with SMS deliverability problems. Have a look at https:/

There is a 2-factor code generator built into the Facebook app for iOS and Android specifically to help with SMS deliverability problems. Have a look at https://www.facebook.com/help/270942386330392/ https://www.facebook.com/help/270942386330392/