XT1921-2 cannot unlock by sigmakey

Unlock4samsung Saturday, July 14, 2018

SigmaKey v.2.28.04
426871453 Sigma dongle 2.28, Initializing...OK
Pack 1: Activated
Pack 2: Activated
Pack 3: Not activated
--------- 2018-07-14 23:56:52 ---------
SigmaKey 2.28.04 Qcom: Direct unlock
Motorola AT COM Port (COM47), Provider: Motorola, Driver ver.: 5.1.0.0, Date: 2/28/2013, USB\VID_22B8&PID_2EC1&REV_0318&MI_00
Firmware: MPSS.TA.2.3.c11.1-00002-8940_GENW3K_PACK-1
Date: Mar 28 2018 07:47:00, Mar 21 2018 08:00:00, 8940.gen
Software IMEI: 351840091586310
Bluetooth address: 000000000000