1, international
Pronunciation: English [ntnn? l】？ Beauty [nt? r？ nn？ l】？
Meaning:
International; Internationally universal
International sports competitions (players); foreigner
(International) * * Production International (Organization)
2. Mobile phone
Pronunciation: English [? mba？ l】？ Beauty [? Mob? l】？
Meaning:
Motor-driven; Changeable, changeable; unfixed
body in motion
3. Identity
Pronunciation: English [Aden? ti]？ Beauty [adent? ti]？
Meaning: n. identity; Identity and consistency; Characteristics; identical equation
Extended data:
Composition of IMEI code of mobile phone;
The IMEI code of a mobile phone consists of 15- 17 digits.
1, TAC, type allocation code, which consists of 8 digits (6 digits in the early days), is a code to distinguish the brand and model of mobile phones. This code is allocated by GSMA and its authorized institutions.
Among them, the first two digits of TAC code are also the identification of the reporting institution, which is the code that authorizes the issuing institution of IMEI code. For example, 0 1 is CTIA in the United States, 35 is BABT in Britain, and 86 is TAF in China.
2.FAC, the final assembly code, consists of 2 digits. In the early TAC code, only 6 digits existed in the mobile phone, so TAC and FAC codes add up to 8 digits. FAC codes are used to distinguish the production within the manufacturer.
3.SNR, Serial Number, serial number, consisting of 6 digits starting from the 9th digit, is used to distinguish the production serial number of each mobile phone.
4. The 4.CD, parity bit and verification code are calculated by Luhn algorithm from the previous 14 bits.
5.SVN, software version number, software version number, distinguishes different software versions used by the same model of mobile phone when it leaves the factory, and only exists in some models of some brands.
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