T599N can not unlock

This is log
Please help

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Welcome to Octoplus/Octopus Box Samsung software version 2.1.4
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To connect SGH-T599N 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 "Modem" value.
7. Set "USB" radio button to "PDA" value.
8. Restart phone.
9. Press "Read Info" in software.
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Platform: Samsung Android
Selected port: COM3
Selected model: SGH-T599N
Searching for a phone. Please wait…
Phone found.
Firmware compiled date: Thu Aug 27 14:41:30 KST 2015
PDA version: T599NUVAOH1
CSC version: T599NTMBAOH1
SW version: T599NUVAOH1
Phone IMEI: 356433057945225
Phone SN: R21DB7EPAGM
Android version: 4.1.2 (JZO54K)
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Platform: Samsung Android
Selected port: COM3
Selected model: SGH-T599N
Searching for a phone. Please wait…
Phone found.
Firmware compiled date: Thu Aug 27 14:41:30 KST 2015
PDA version: T599NUVAOH1
CSC version: T599NTMBAOH1
SW version: T599NUVAOH1
Phone IMEI: 356433057945225
Phone SN: R21DB7EPAGM
Android version: 4.1.2 (JZO54K)
Unlocking phone…
Reading data from phone…
Cheking Root
Phone is Rooted
Data read successfully.
Please conect phone to BOX via UART cable.
Searching for a phone. Please wait…

try over 5 times and when I put UART cable , and just wait and No result

Please help