It may be Apple himself and realize that the fixed serial number "Exposure" is too much information. Such as the first two representative of the origin, two or three refers to the production line, the fourth representative of the production line, the final four representatives Model color storage, etc. In addition to query warranty, some netizens found some laws in the apple serial number, and Apple hide some of the basic information of the device in the form of a digital alphanumeric.
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