Hi thanks for the reply.
I did a read factory file and i got the folder name same as the firmware i flash (MT6572__alps__iPhone__mbk72_wet_jb3__4.2.2__ALPS. JB3.MP.V1) which is having problem with no rear camera function.
Here's the picture of the Clone iPhone 6 board:
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Is there any other way to find the correct firmware?