How can a mobile phone tell the date of production by imei number?

This post was last edited by ableto on 2010-12-3121:48.

I just got a call, and I want to check the real factory date of the mobile phone. There is a way to get it from your mobile phone.

Back cover, find the 10 mechanical code, and then find out the factory date, but ... these labels can be refurbished. .....

Attached first: machine

Method for judging mechanical code of rear cover

The way to verify whether it is refurbished: first find out the production date of your mobile phone. Method (quoted by the host):

Fuselage:

Open the back cover and find the 10 mechanical code (located under IMEI).

For example: J286NA22XZ

Now known: fourth place: indicating the place of origin.

6- Tianjin 3- Hangzhou 2- USA R- Germany G- USA 5- Hangzhou Eastcom W- It's Singapore

It seems that all ms are made in Tianjin.

Fifth place: Year.

Now we can confirm: L-2009 N-20 10 year.

Sixth place: indicates the month

A-B-65438+ October C-D- February E-F- March G-H- April J-K- May L-M- June

N-P- July Q-R- August S-T- September U-V-65438+ October W-X-65438+ October Y-Z-65438+ February.

(Note: The former represents the first half of the month, while the latter represents the second half. )

Therefore, J286NA22XZ represents the output of the first ten days of 20 10 and 1.

Battery cover:

In addition, the back of the battery cover also has the production date of the cover:

The number of the date is printed on the back of the battery cover, the second row

For example, "C 0 128 10 CCC" is 201065438+1October 28th (foreigners are used to "month-day-year").