1-just connect device and select Android Adapter PCUI
SigmaKey 2.30.03 HiSi: Repair IMEI
Connecting....
Android Adapter PCUI (COM331), Provider: Huawei Incorporated, Driver ver.: 2.0.6.714, Date: 7/30/2015, USB\Vid_12D1&Subclass_13&Prot_22
Firmware: NRD90M test-keys, Date: Sat May 20 05:15:15 CST 2017, Provider: hw/meafnaf
Boot Version: Dallas-Release_B200_BOOT, FastBoot Version: Chipset-dallas 5.0.0.1(08LI)_FASTBOOT
Recovery Version: (unknow), System Version: System 5.0.0.57(0K3Y)
Removing firmware protection....Done
Software IMEI1: 111111111111111{example}
Software IMEI2: 111111111111111
Repaired IMEI1: 222222222222222{example}
Repaired IMEI2: 222222222222222
Done
Please perform Factory data reset via phone's menu.
2-
After completing the operation no need any unlock or factory reset...