How to repair imei mtk by cm2

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How to repair imei mtk by cm2

Hello
How to repair imei mtk by cm2

h810 didnt accept flash file

Checking data...OK
Platform: LG Qualcomm
Selected port: COM85
Selected model: H810
Reading info...
Model ID: LG-H810
IMEI: 000000-00-000000-0
Android version: 5.1
Battery level: 65%
SW Version: H81010b
Mode: Emergency
Initializing flash...OK
SW version: LGH810AT-00-V10b-310-410-MAY-12-2015+0
Android version: 5.1
LAF Version: 1.1
Product ID: HD56S150522002947
IMEI: 357905-06-194588-6
Target operator: ATT
Hardware: rev_10
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Writing phone firmware without real necessity is at your own risk.

Downgrade may lead to phone damage!

Please, make sure the phone's battery is fully charged.
Disconnect all other devices from the computer (including phones, modems, etc.) and close all other running programs.
To avoid errors in the flashing process, use a clean PC (without any installed drivers for other Qualcomm-based devices).
You should not run any other programs or attach new devices to your computer during the flashing!
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Opening "LGH810AT-00-V10o-ATT-US-SEP-10-2015-ARB02+0_User_Secure.oct"...Failed!
File declared for different phone model!
Performed by 2.8.8 Software version.

why its decline to flash