Messenger and Facebook Login Failed Error Code 1 & 2 (FBAPIErrorDomain) on iPhone in iOS 13.5 by Apple TechPage November 21, 2021, 5:34 am 1.4k Views how to fix Error Code 1 and 2 when login into Facebook and Messenger on iPhone in iOS 13.5. . Share this: See more Previous article how to root the mobile without pc in detailly in telugu Next article iOS 15.0.1 Released | What's New? Should you update to iOS 15.0.1