h815 dead after flash

[Skaza]

i flash h815 and write frimware done ok
but phone cant power on
Log file "C:\Program Files\Octoplus\Octoplus_LG\LOG\07-05-2017_12-51-18.log" created.
2017-05-07 12:51:21 > Searching for server...
2017-05-07 12:51:21 > Trying to ping server...2017-05-07 12:51:21 > ok
2017-05-07 12:51:21 > Trying connect to server...
2017-05-07 12:51:21 > Server greeting: Card updates server v.2.2
2017-05-07 12:51:22 > Searching installed cards...
2017-05-07 12:51:22 > Found card with s/n: 100088887
2017-05-07 12:51:22 > Server check...
2017-05-07 12:51:22 > Server Check succesfull!
2017-05-07 12:51:22 > Server Check succesfull!
2017-05-07 12:51:24 > Welcome to Octoplus/Octopus Box LG Software version 2.6.4
2017-05-07 12:52:28 > --------------------------------------------------------------------------------
2017-05-07 12:52:28 > Platform: LG Qualcomm
2017-05-07 12:52:28 > Selected port: COM191
2017-05-07 12:52:28 > Selected model: H815
2017-05-07 12:52:28 > Reading info...
2017-05-07 12:52:30 > Model ID: LG-H815
2017-05-07 12:52:30 > IMEI: 359872-06-513561-7
2017-05-07 12:52:30 > Android version: 6.0
2017-05-07 12:52:30 > Battery level: 96%
2017-05-07 12:52:30 > SW Version: 2017-05-07 12:52:30 > H81521y
2017-05-07 12:52:32 > Mode: Emergency
2017-05-07 12:52:32 > Initializing flash...2017-05-07 12:52:35 > OK
2017-05-07 12:52:36 > SW version: 2017-05-07 12:52:36 > LGH815AT-00-V21y-GLOBAL-COM-JUN-20-2016-ARB03+0
2017-05-07 12:52:36 > Android version: 6.0
2017-05-07 12:52:36 > LAF Version: 1.1
2017-05-07 12:52:36 > Product ID: HD56S150514000891
2017-05-07 12:52:36 > IMEI: 359872-06-513561-7
2017-05-07 12:52:36 > Target operator: ATT
2017-05-07 12:52:36 > Hardware: rev_10
2017-05-07 12:52:36 > Performed by 2.6.4 Software version.
2017-05-07 12:53:21 > --------------------------------------------------------------------------------
2017-05-07 12:53:21 > Checking data...2017-05-07 12:53:22 > OK
2017-05-07 12:53:22 > Platform: LG Qualcomm
2017-05-07 12:53:22 > Selected port: COM191
2017-05-07 12:53:22 > Selected model: H815
2017-05-07 12:53:22 > Reading info...
2017-05-07 12:53:24 > Model ID: LG-H815
2017-05-07 12:53:24 > IMEI: 359872-06-513561-7
2017-05-07 12:53:24 > Android version: 6.0
2017-05-07 12:53:24 > Battery level: 97%
2017-05-07 12:53:24 > SW Version: 2017-05-07 12:53:24 > H81521y
2017-05-07 12:53:26 > Mode: Emergency
2017-05-07 12:53:26 > Initializing flash...2017-05-07 12:53:29 > OK
2017-05-07 12:53:30 > SW version: 2017-05-07 12:53:30 > LGH815AT-00-V21y-GLOBAL-COM-JUN-20-2016-ARB03+0
2017-05-07 12:53:30 > Android version: 6.0
2017-05-07 12:53:30 > LAF Version: 1.1
2017-05-07 12:53:30 > Product ID: HD56S150514000891
2017-05-07 12:53:30 > IMEI: 359872-06-513561-7
2017-05-07 12:53:30 > Target operator: ATT
2017-05-07 12:53:30 > Hardware: rev_10
2017-05-07 12:53:30 > --------------------------------------------------------------------------------
2017-05-07 12:53:30 > 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!
2017-05-07 12:53:30 > --------------------------------------------------------------------------------
2017-05-07 12:53:33 > Opening "H81520D_00_0115.oct"...2017-05-07 12:53:33 > OK
2017-05-07 12:53:33 > Setting options...2017-05-07 12:53:35 > OK
2017-05-07 12:53:35 > Reading partitions...2017-05-07 12:53:36 > OK
2017-05-07 12:53:36 > Formating USERDATA...2017-05-07 12:53:40 > OK
2017-05-07 12:53:40 > Formating ENCRYPT...2017-05-07 12:53:44 > OK
2017-05-07 12:53:44 > Writing PrimaryGPT...2017-05-07 12:53:44 > OK
2017-05-07 12:53:44 > Writing modem...2017-05-07 12:53:54 > OK
2017-05-07 12:53:54 > Writing pmic...2017-05-07 12:53:54 > OK
2017-05-07 12:53:54 > Writing sbl1...2017-05-07 12:53:55 > OK
2017-05-07 12:53:55 > Writing tz...2017-05-07 12:53:55 > OK
2017-05-07 12:53:55 > Writing sdi...2017-05-07 12:53:55 > OK
2017-05-07 12:53:55 > Writing hyp...2017-05-07 12:53:55 > OK
2017-05-07 12:53:55 > Writing rpm...2017-05-07 12:53:56 > OK
2017-05-07 12:53:56 > Writing aboot...2017-05-07 12:53:56 > OK
2017-05-07 12:53:56 > Writing sbl1bak...2017-05-07 12:53:56 > OK
2017-05-07 12:53:56 > Writing pmicbak...2017-05-07 12:53:56 > OK
2017-05-07 12:53:56 > Writing tzbak...2017-05-07 12:53:56 > OK
2017-05-07 12:53:56 > Writing hypbak...2017-05-07 12:53:57 > OK
2017-05-07 12:53:57 > Writing rpmbak...2017-05-07 12:53:57 > OK
2017-05-07 12:53:57 > Writing abootbak...2017-05-07 12:53:57 > OK
2017-05-07 12:53:57 > Writing sdibak...2017-05-07 12:53:57 > OK
2017-05-07 12:53:57 > Writing persist...2017-05-07 12:53:58 > OK
2017-05-07 12:53:58 > Writing sec...2017-05-07 12:53:58 > OK
2017-05-07 12:53:58 > Writing laf...2017-05-07 12:54:02 > OK
2017-05-07 12:54:02 > Writing boot...2017-05-07 12:54:06 > OK
2017-05-07 12:54:06 > Writing recovery...2017-05-07 12:54:10 > OK
2017-05-07 12:54:10 > Writing factory...2017-05-07 12:54:14 > OK
2017-05-07 12:54:14 > Writing raw_resources...
2017-05-07 12:54:14 > Writing raw_resourcesbak...
2017-05-07 12:54:15 > Writing system...2017-05-07 13:00:56 > OK
2017-05-07 13:00:56 > Writing cust...2017-05-07 13:01:02 > OK
2017-05-07 13:01:02 > Writing BackupGPT...2017-05-07 13:01:02 > OK
2017-05-07 13:01:02 > Reading partitions...2017-05-07 13:01:03 > OK
2017-05-07 13:01:03 > Formating RCT...2017-05-07 13:01:07 > OK
2017-05-07 13:01:07 > Formating MPT...2017-05-07 13:01:11 > OK
2017-05-07 13:01:11 > Finalizing...2017-05-07 13:01:13 > OK
2017-05-07 13:01:13 > Writing firmware done!
2017-05-07 13:01:13 > Performed by 2.6.4 Software version.

only qualcomm mode
i try repair boot medusa pro and give me error

[Octopus box]

Hello.

According to the Software log, You have downgraded firmware version from V21 to V20, Downgrade may lead to phone damage! You can try to repair your device with Medusa Pro Software.

[Octopus box]

This is not Medusa section, please post your logs in proper forum section (http://forum.gsmhosting.com/vbb/f664/).