G357FZ imei 0/1 need cert

how to chang imei need cert files
will be not available in the Support Area. cert how to slaved this problem
posible?

Platform: Samsung Android
Selected port: COM176
Selected model: SM-G357FZ
Reading info, please wait…
Please, press "OK" button on the phone to allow USB debugging..
Please, press "OK" button on the phone to allow USB debugging..
Detected phone model: SM-G357FZ
Firmware compiled date: Mon Sep 22 19:08:40 KST 2014
PDA version: G357FZXXU1ANI8
CSC version: G357FZOJV1ANH3
SW version: G357FZXXU1ANHD
Phone IMEI: Unknown
Phone SN: R58G30L336D
Android version: 4.4.4 (KTU84P)