Check your IMEI, it is composed of 15 digits like this-
AAAAAA/BB/CCCCCC/D

AAAAAA= Type of the phone (mass production have more than 1 code)

CCCCCC= Serial Number

D= IMEI Verifyer

check ur BB.
10= Finland
20= Germany
30= Korea
40= China
50= Brazil, USA
60= Hongkong, Mexico

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