Overview: Apple has a simple way to check whether your iPhone is new, refurbished, or replaced; all you need is its model ...
An iPhone may look perfect on the outside, but how do you know if it is new, refurbished, or a replacement unit?
Ever wondered what M, F, N, or 3A means on your iPhone and how it helps to find out if it’s new, refurbished, or replaced? Let’s find out.