How to check the factory time of Apple mobile phone?

If you want to check the factory date of Apple's mobile phone, turn on your device, and from the settings on the main screen-General-About this machine-serial number, we can see that the serial number is a mixture of 12 digits and letters.

How to understand the meaning of serial number;

The first letter of the serial number indicates the place of origin. Specifically, the first three digits represent the place of origin and the production line, and the fourth and fifth digits are the date of production.

At present, the fourth digit of serial number represents the year of production, which is represented by 20 letters (excluding A, B, E, I, O and U from 26 letters). Note that it is rounded up every six months. Starting from 20 10, there is a comment before it.

C stands for the first half of 20 10, and d stands for the second half of 20 10.

F stands for the first half of 20 1 1, and g stands for the second half of 20 1 1.

H stands for the first half of 20 12, and J stands for the second half of 20 12.

K stands for the first half of 20 13 and l stands for the second half of 20 13.

M stands for the first half of 20 14 and n stands for the second half of 20 14.

P stands for the first half of 20 15 and q stands for the second half of 20 15.

R stands for the first half of 20 16 and s stands for the second half of 20 16.

T stands for the first half of 20 17 and v stands for the second half of 20 17.

Author: Suo Dalong

Link: /question/396348 17/ answer/131283140.

Source: Zhihu.

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