SPH-L720 SPRINT can not unlock


To connect SPH-L720 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. Go to dial window.
11. Enter "*#9090# or *#0808#" number.
12. Set "Diag config" to "[1]DM/DUM over HS-USB" value.
13. Restart phone.
14. Press "Read Info" in software.
———————————————————————————–
Platform: Samsung Android
Selected port: COM8
Selected model: SPH-L720
Can’t kill external ADB references. Please, close all programs that use ADB server.
Please, press "OK" button on the phone to allow USB debugging..
Please, press "OK" button on the phone to allow USB debugging..
Detected phone model: SPH-L720
Firmware compiled date: Sat Apr 27 18:25:25 KST 2013
PDA version: L720VPUAMDL
CSC version: L720SPTAMDL
SW version: L720VPUAMDC
Phone IMEI: 99000339871268
Phone SN: 00000000000
Android version: 4.2.2 (JDQ39)
Sales code: SPR
Country: USA
HW platform: msm8960
HW Chip: apq8064
HW Modem: MDM9615M
Codename: jfltespr
Checking Root:
Phone is not Rooted.
Installing service app…
Unlocking phone…
Finalizing…
Phone is successfully unlocked
To finish the operation, please restart the phone via phone’s menu.
Performed by 2.3.7 Software version.
———————————————————————————–
Platform: Samsung Anycall
Selected port: COM8
Selected model: SPH-L720
Mode: Normal
Phone model: SPH-L720
Firmware compiled date:
Firmware compiled time:
Firmware released date: -รน~
Firmware released time:
SW version:
Performed by 2.3.7 Software version.
———————————————————————————–
Platform: Samsung Android
Selected port: COM8
Selected model: SPH-L720
Detected phone model: SPH-L720
Firmware compiled date: Sat Apr 27 18:25:25 KST 2013
PDA version: L720VPUAMDL
CSC version: L720SPTAMDL
SW version: L720VPUAMDC
Phone IMEI: 99000339871268
Phone SN: 00000000000
Android version: 4.2.2 (JDQ39)
Sales code: SPR
Country: USA
HW platform: msm8960
HW Chip: apq8064
HW Modem: MDM9615M
Codename: jfltespr
Checking Root:
Phone is Rooted.
Reading security backup, please wait…
Backup saved as Security-SPH-L720-30-09-2016_12-41-10 file
Installing service app…
Unlocking phone…
Finalizing…
Phone is successfully unlocked
To finish the operation, please restart the phone via phone’s menu.
Performed by 2.3.7 Software version.

But simcard is invalid , does not work .