lg-k371 unlock failed,.. help team,.


im using latest 2.3.9 version,. heres the logs:

Welcome to Octoplus/Octopus Box LG Software version 2.3.9
——————————————————————————–
Platform: LG Qualcomm
Selected port: COM96
Selected model: K371
Reading info…
Model ID: LG-K371
IMEI: 354885-07-064005-3
Android version: 6.0
Battery level: 54%
Mode: Normal
Performed by 2.3.9 software version.
——————————————————————————–
Checking data…OK
Platform: LG Qualcomm
Selected port: COM96
Selected model: K371
Reading info…
Model ID: LG-K371
IMEI: 354885-07-064005-3
Android version: 6.0
Battery level: 54%
Mode: Normal
Unlocking…
Reading QCN…
Send SPC…OK
Reading Mobile Property…OK
Reading Feature Mask…OK
Reading Roaming List 0…Failed!
Reading NV_Numbered Items…Canceled!
Backup saved to "K371_354885070640053_25-08-2016_12-51-19.qcn"
Performed by 2.3.9 software version.
——————————————————————————–
Platform: LG Qualcomm
Selected port: COM96
Selected model: K371
Reading info…
Model ID: LG-K371
IMEI: 354885-07-064005-3
Android version: 6.0
Battery level: 55%
Mode: Normal
Performed by 2.3.9 software version.
——————————————————————————–
Checking data…OK
Platform: LG Qualcomm
Selected port: COM96
Selected model: K371
Reading info…
Model ID: LG-K371
IMEI: 354885-07-064005-3
Android version: 6.0
Battery level: 55%
Mode: Normal
Selecting output file…OK
Destination file: "K371_354885070640053_25-08-2016_12-55-44.NVM"
Reading NVM…Canceled!
Performed by 2.3.9 software version.
——————————————————————————–
Checking data…OK
Platform: LG Qualcomm
Selected port: COM96
Selected model: K371
Reading info…
Model ID: LG-K371
IMEI: 354885-07-064005-3
Android version: 6.0
Battery level: 57%
Mode: Normal
Selecting output file…OK
Destination file: "K371_354885070640053_25-08-2016_13-09-09.qcn"
Reading QCN…
Send SPC…OK
Reading Mobile Property…OK
Reading Feature Mask…OK
Reading Roaming List 0…Failed!
Reading NV_Numbered Items…Canceled!
Performed by 2.3.9 software version.
——————————————————————————–
Checking data…OK
Platform: LG Qualcomm
Selected port: COM20
Selected model: K371
Reading info…
Model ID: LG-K371
IMEI: 354885-07-064005-3
Android version: 6.0
Battery level: 58%
Mode: Normal
Unlocking…
Reading QCN…
Send SPC…OK
Reading Mobile Property…OK
Reading Feature Mask…OK
Reading Roaming List 0…Failed!
Reading NV_Numbered Items…OK
Reading NV_Numbered SIM1 Items…OK
Reading NV_Numbered SIM2 Items…OK
Reading NV Items…
Performed by 2.3.9 software version.
——————————————————————————–
Checking data…OK
Platform: LG Qualcomm
Selected port: COM20
Selected model: K371
Reading info…Failed!
Port busy
Performed by 2.3.9 software version.
——————————————————————————–
Platform: LG Qualcomm
Selected port: COM20
Selected model: K371
Reading info…Failed!
Port busy
Performed by 2.3.9 software version.
——————————————————————————–
Platform: LG Qualcomm
Selected port: COM20
Selected model: K371
Reading info…
Model ID: LG-K371
IMEI: 354885-07-064005-3
Android version: 6.0
Battery level: 58%
Mode: Normal
Performed by 2.3.9 software version.
——————————————————————————–
Checking data…OK
Platform: LG Qualcomm
Selected port: COM20
Selected model: K371
Reading info…
Model ID: LG-K371
IMEI: 354885-07-064005-3
Android version: 6.0
Battery level: 58%
Mode: Normal
Unlocking…
Skip Read/Write QCN
Do you want to create security backup?
Switching to Download mode…OK
Initializing flash…OK
Reading partitions…OK
Reading security area…OK
Backup saved to "K371_354885070640053_25-08-2016_13-12-51.SEC"
Switching to Normal mode…
Trying to enable Diagnostics ports…
Initializing ADB…OK
Waiting for phone…OK
Diagnostics ports are enbled!
Switching to Serial Port…
Failed!
Trying to enable Diagnostics ports…
Checking root access…
Phone is not rooted.
Please, root the phone manually!
Please perform the following steps:
1. Disconnect cable
2. Put phone into Normal mode manually
3. Press "Ok" button
Trying to enable Diagnostics ports…
Failed!
Writing security area…
Performed by 2.3.9 software version.
——————————————————————————–
Checking data…OK
Platform: LG Qualcomm
Selected port: COM20
Selected model: K371
Reading info…
Model ID: LG-K371
IMEI: 354885-07-064005-3
Android version: 6.0
Battery level: 58%
Mode: Normal
Unlocking…
Skip Read/Write QCN
Do you want to create security backup?
Writing security area…Failed!
Performed by 2.3.9 software version.
——————————————————————————–
Checking data…OK
Platform: LG Qualcomm
Selected port: COM20
Selected model: K371
Reading info…
Model ID: LG-K371
IMEI: 354885-07-064005-3
Android version: 6.0
Battery level: 57%
Mode: Normal
Unlocking…
Skip Read/Write QCN
Do you want to create security backup?
Writing security area…Failed!
Performed by 2.3.9 software version.
——————————————————————————–
Checking data…OK
Platform: LG Qualcomm
Selected port: COM20
Selected model: K371
Reading info…
Model ID: LG-K371
IMEI: 354885-07-064005-3
Android version: 6.0
Battery level: 57%
Mode: Normal
Unlocking…
Skip Read/Write QCN
Do you want to create security backup?
Switching to Download mode…OK
Initializing flash…OK
Reading partitions…OK
Reading security area…OK
Backup saved to "K371_354885070640053_25-08-2016_13-18-06.SEC"
Switching to Normal mode…
Trying to enable Diagnostics ports…
Initializing ADB…OK
Waiting for phone…OK
Diagnostics ports are enbled!
Switching to Serial Port…
Failed!
Trying to enable Diagnostics ports…
Checking root access…
Phone is not rooted.
Please, root the phone manually!
Please perform the following steps:
1. Disconnect cable
2. Put phone into Normal mode manually
3. Press "Ok" button
Trying to enable Diagnostics ports…
Diagnostics ports are enbled!
Switching to Serial Port…
Failed!
Trying to enable Diagnostics ports…
Checking root access…
Phone is not rooted.
Please, root the phone manually!
Performed by 2.3.9 software version.
Connecting to server support.octoplusbox.com:82…OK
Authorizing…OK

cant download 2.3.3 version,. seen it here done with 2.3.3 version,.