The IMEI is TAC + FAC + SNR + spimei (International Mobile Equipment Identity), short for the identity code of international mobile devices, it is an electronic string consisting of 15 digits. It corresponds to each mobile phone one by one and is the only one in the world. Each mobile phone is assigned a unique group of numbers in the world after it is assembled. This number will be recorded by the manufacturer who manufactures it from production to delivery.
It consists:
1. The first six digits (TAC) are "model approval numbers", which generally represent models.
2. The next two digits (FAC) are the "last Assembly number", which generally represents the Production
Location.
3. the next 6 digits (SNR) are "serial numbers", which generally represent the production sequence.
.
4. the last 1-digit (SP) is usually "0", which is the verification code. Currently, it is temporarily standby.
.
The IMEI code is attached to the logo on the back of the mobile phone and is read and written to the memory of the mobile phone. It is also the "file" and "ID card number" of the mobile phone in the manufacturer ".
Appendix: how to obtain the IMEI code of a mobile phone
If your mobile device is a mobile phone, you can press "* #06 #" on your mobile phone to obtain the IMEI code of your mobile phone.
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