h815 hang logo android 6.0

Hi all team,

I have h815 hang on logo. I download firmware H81520i_00_0927.kdz
this is the log when I try to write firmware after convert to .oct


Checking data...OK
Platform: LG Qualcomm
Selected port: COM176
Selected model: H815
Reading info...
Model ID: LG-H815
IMEI: 35****-06-******-5
Android version: 6.0
Battery level: 57%
SW Version: H81520d
Mode: Emergency
Initializing flash...OK
SW version: LGH815AT-00-V20h-208-10-AUG-29-2016+0
Android version: 6.0
LAF Version: 1.1
Product ID: BS08S150607003959
IMEI: 359872-06-365972-5
Target operator: GLOBAL
Hardware: rev_10
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!
Canceled!
Performed by 2.4.5 Software version.
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i need to know if I can flash with this file?
thx