unlock ZTE Z970 fail

program said unlocked but phone still locked

SigmaKey 2.14.03b1 ADB: Direct unlock
* daemon not running. starting it now *
* daemon started successfully *
^ ZTE Handset ADB Interface
Version: Linux version 3.4.0-g1af7f82 (xueyibing@scm12) (gcc version 4.7 (GCC) ) #1 SMP PREEMPT Tue Aug 18 23:35:33 CST 2015
Phone model: zte Z970
Android 4.4.4; Firmware: KTU84P; Date: Tue Aug 18 23:17:24 CST 2015
Version: Z970_MetroPCSV1.0.0B13
Baseband Firmware: .3.0.c9.6-00021-M8926DAAAANAZM-1
Baseband Processor: Qualcomm MSM8926
Date: Aug 19 2015 10:24:17, Aug 14 2015 04:00:00, DAAAANAZ
IMEI: 865891024986495
Security area saved to "C:\Users\Trabajo\Documents\SigmaKey\security backup5891024986495_zte_Z970_KTU84P (1).skb"
Unlocking phone…Done
Restarting phone…Done

backups file https://drive.google.com/drive/my-drive