unlock lg v496 failed, please help

my device is rooted but I can't unlock lg v469, please help. thank you

Welcome to Octoplus/Octopus Box LG Software version 2.1.3
--------------------------------------------------------------------------------
Platform: LG Qualcomm
Selected port: COM955
Selected model: V496
Reading info...
Model ID: LG-V496
IMEI: 359211
Android version: 5.0.2
Battery level: 98%
Mode: Normal
--------------------------------------------------------------------------------
Checking data...OK
Platform: LG Qualcomm
Selected port: COM955
Selected model: V496
Reading info...
Model ID: LG-V496
IMEI: 359211-06
Android version: 5.0.2
Battery level: 98%
Trying to enable Diagnostics ports...
Initializing ADB...OK
ADB Server was found. Trying to kill...
Waiting for phone...Failed!
Please, reconnect phone, enable USB debugging, and try again.
To enable USB debugging, please perform the following steps:
1. Disconnect cable
2. Install LG Android ADB drivers
3. Go to "Settings" -> "About phone" -> "Software information"
4. Click on Build number 5 times
5. Enable "Settings" -> "Developer options" -> "USB debugging" option
6. Connect the cable and check, whether ADB interface has appeared in
PC Device Manager.
--------------------------------------------------------------------------------
Platform: LG Qualcomm
Selected port: COM955
Selected model: V496
Reading info...
Model ID: LG-V496
IMEI: 359211-06
Android version: 5.0.2
Battery level: 98%
Mode: Normal
--------------------------------------------------------------------------------
Platform: LG Qualcomm

--------------------------------------------------------------------------------
Platform: LG Qualcomm
Selected port: COM3
Selected model: V496
Reading info...Failed!
Port busy
--------------------------------------------------------------------------------
Platform: LG Qualcomm
Selected port: COM955
Selected model: V496
Reading info...
Model ID: LG-V496
IMEI: 359211-
Android version: 5.0.2
Battery level: 98%
Mode: Normal
--------------------------------------------------------------------------------
Checking data...OK
Platform: LG Qualcomm
Selected port: COM955
Selected model: V496
Reading info...
Model ID: LG-V496
IMEI: 359211-06-219255-4
Android version: 5.0.2
Battery level: 98%
Trying to enable Diagnostics ports...
Initializing ADB...OK
ADB Server was found. Trying to kill...
Waiting for phone...Failed!
Please, reconnect phone, enable USB debugging, and try again.
To enable USB debugging, please perform the following steps:
1. Disconnect cable
2. Install LG Android ADB drivers
3. Go to "Settings" -> "About phone" -> "Software information"
4. Click on Build number 5 times
5. Enable "Settings" -> "Developer options" -> "USB debugging" option
6. Connect the cable and check, whether ADB interface has appeared in
PC Device Manager.

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unlock lg v496 failed, please help