N910v version 5.0.1 can’t unlock please how to enable Diagnostic port?

I have tried all I could do to unlock this N910v on android 5.0.1 but it didnt just work, I think the problem is that the diagonistic port is not working, I used the enable diag button but it didnt enable the port, please how will I unlock this phone?

Logs;

Welcome to Octoplus/Octopus Box Samsung software version 2.2.1
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To connect SC-06D phone you have to perform the following steps:
1. Disconnect USB cable from phone.
2. Go to Menu->Settings->Applications->Development.
3. Turn on "USB Debugging" option.
4. When message is appear press "Yes".
5. Go to dial window.
6. Enter "*#7284#" number.
7. Set "UART" radio button to "PDA" value.
8. Go to "Qualcomm USB Settings".
9. Select "DM+Modem+ADB".
10. Press Home button.
11. Go to dial window.
12. Enter "*#9090#" number.
13. Set "Diag config" to "UART" value.
14. Restart phone.
15. Press "Read Info" in software.
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To connect SM-N910V phone you have to perform the following steps:
1. Disconnect USB cable from phone.
2. Go to Menu->Settings->More->About Device.
3.Tap on "Build number" 7 times to enable developer options.
4. Go to Menu->Settings->More->Developer options.
5. Turn on "USB Debugging" option.
6. Go to dial window.
7. Enter "*#0808#" number.
8. Select "DM+Modem+ADB".
9. Press Home button.
10. Restart phone.
11. Press "Read Info" in software.
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Platform: Samsung Android
Selected port: COM13
Selected model: SM-N910V
Phone was not found on the selected port!
Searching for USB diagnostic port…
Connecting to phone on COM17
Mode: Emergency
Phone connection failed
No diagnostic ports found!
Connecting to phone on COM13
Phone connection failed
Performed by 2.2.1 software version
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Platform: Samsung Android
Selected port: COM13
Selected model: SM-N910V
Detected phone model: SM-N910V
Firmware compiled date: Fri Jul 31 15:49:35 KST 2015
PDA version: N910VVRU2BOG5
CSC version: N910VVZW2BOG5
SW version: N910VVRU2BOG5
Phone SN: 00000000000
Android version: 5.0.1 (LRX22C)
Updating DIAG confing…
DIAG confing is succesfully enabled.
Performed by 2.2.1 software version
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Platform: Samsung Android
Selected port: COM13
Selected model: SM-N910V
Reading info…
Phone was not found on the selected port!
Phone unlocking failed
Performed by 2.2.1 software version
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Platform: Samsung Android
Selected port: COM13
Selected model: SM-N910V
Reading info…
Phone was not found on the selected port!
Phone unlocking failed
Performed by 2.2.1 software version