How to check what firmware sealed iPhone has :)

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FernEffor

New Member
Sep 17, 2007
11
0
0
#1
The answer is simple:
"A typical iPhone Serial number: 7T727XYZWH8

Using the above as an example
digits 1 to 3 (7T7) = Year / Batch code
digits 4 to 5 (27) = Week of manufacture
digits 6 to 8 (XZY) = Unique identifier part of the S/N
digits 9 to 11 (WH8) = 8Gb model

We are only interested in digits 4 to 5 which is the Week of manufacturer and we already know that 1.1.1 started shipping part way through week 39."