zte z830 after unlock still lock

——— 2016-06-02 08:31:34 ———
SigmaKey 2.17.04b2 ADB: Get unlock codes
* daemon not running. starting it now *
* daemon started successfully *
^ ZTE Handset ADB Interface
Version: Linux version 3.4.0-g9b6969a-00440-g86d908e (xuzhenxuan@zte) (gcc version 4.7 (GCC) ) #1 SMP PREEMPT Thu Sep 25 03:22:49 CST 2014
Phone model: zte Z830
Android 4.4.2; Firmware: KVT49L; Date: Thu Sep 25 09:01:16 CST 2014
Version: Z830V1.0.0B14
Baseband Firmware: 0.1.c1.18-00004-M8926DAAAANAZM-1
Unable to read codes for this phone model. Do you want to perform direct unlock instead? [YES]
Obtaining root privileges…NO
Date: Sep 25 2014 00:12:50, Jul 02 2014 04:00:00, DAAAANAZ
Software IMEI: 86460xxxxxxxx
Security area saved to "C:\Users\Albert\Documents\SigmaKey\security backup4607021993982xxxxxxxx..Done
Restarting phone…Done