turning off a two factor authentication from iphone

Generally, you cannot. See Two-factor authentication for Apple ID for details.

yeshitilla Said:

"turning off a two factor authentication from iphone: how can i remove a two factor authentication from my iphone? I need a quick help."

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Ridding of Two-Factor Authentication:

If you were to move to a country that doesn't have this protection, then it would go away, once you change your location (you'd have to zero-out your balance first --note that all purchases would be lost).