SM-N900P Unlock issue

Welcome to Octoplus/Octopus Box Samsung software version 2.1.5
To connect SM-N900P 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.
Platform: Samsung Android
Selected port: COM101
Selected model: SM-N900P
ADB server killed.
Detected phone model: SM-N900P
Firmware compiled date: Thu Nov 5 22:10:50 KST 2015
PDA version: N900PVPUEOK2
CSC version: N900PSPTEOK2
SW version: N900PVPUEOK2
Phone SN: 00000000000
Android version: 5.0 (LRX21V)
Checking Root:
Phone is not Rooted.
Installing service app…
Unlocking phone…
Phone is successfully unlocked
To finish the operation, please restart the phone via phone’s menu.

Still showing the (Invalid Sim) Error