source:- https://savvydroid.com
Many people know this thing long ago, but many do not know. For those who do not know this post, basically this post.
#06# [Cheak IMEI Info] ##6484##*[Hardware Test Menu] * # * # 4636 # * # * [Info about Device, User Statistics & Battery]
Dial * # * # 6484 # * # * A new window will appear as below.

If the window does not come, then the phone will not be genuine, copy or operated by unofficial customs.
The green hardware that will be tested on the right hand side of the hardware that you successfully test will be checked and if you can test it, then your phone is genuine.
You can also check online too easily.
IMEI Copy by dialing * # 06 #. If IMEI receives the correct information on your phone, then understand that your phone is original.
thanks to everyone.
Any queries ....