Zte z830 at&t unlock how?

Please i have ZTE Z830 AT&T to unlock.
Can i do it?

this log it is reading security area:

IMPORTANT NOTE: DON’T CONNECT MULTIPLE ANDROID DEVICE IN USB DEBUGGING MODE AT SAME TIME!
Waiting For Device… OK[WinUSB]
Please Tap on ‘OK’ in ‘Allow Usb Debugging;’ Pop-up on Device Screen!
Device Status: [ONLINE]
Model : Z830
Manufacturer : zte

Serial No. : 16516c2
Baseband : msm

BaseBand Version : 0.1.c1.18-00004-M8926DAAAANAZM-1

SW Version : Z830V1.0.0B11

Custom Version :

Android Version : 4.4.2
[KVT49L
]
Built Date : Sun Jul 13 17:07:01 CST 2014

Checking Root Permission… OK
Reading Security… OK..OK..OK
Cleaning Environment… OK
Security File Saved in: ‘C:\AHT2\BACKUP\SECURITY\Z830\2016_04_07__12_05_0 0\SECURITY_Z830_.bin’
Stopping ADB Service… OK
Operation Time: 00:02:52

thanks in advance.