Huawei U8680 unlock via sigma

SigmaKey v.2.15.02
7430**** Sigma dongle 2.15, Initializing…OK
Pack 1: Activated
Pack 2: Activated
——— 2016-02-10 15:54:55 ———
SigmaKey 2.15.02 Qcom: Direct unlock
Error writing to serial port
——— 2016-02-10 16:11:49 ———
SigmaKey 2.15.02 Qcom: Direct unlock
DBAdapter Reserved Interface (COM109), Provider: Huawei Incorporated, Driver ver.: 2.0.6.601, Date: 2/3/2010, USB\VID_12D1&PID_1035&REV_0000&MI_04
Version: 7X30A-AABBQMLYM-4000
Select phone connection method [1st method]
Missing response from phone
——— 2016-02-10 16:12:45 ———
SigmaKey 2.15.02 Qcom: Direct unlock
Error writing to serial port
——— 2016-02-10 16:12:57 ———
SigmaKey 2.15.02 Qcom: Direct unlock
DBAdapter Reserved Interface (COM109), Provider: Huawei Incorporated, Driver ver.: 2.0.6.601, Date: 2/3/2010, USB\VID_12D1&PID_1035&REV_0000&MI_04
Version: 7X30A-AABBQMLYM-4000
Select phone connection method [2nd method]
IMEI: 863225010178209
Bluetooth address: 8853D40F22FE
WiFi address: 8853D40F22FF
Security area saved to "C:\Users\jcm mobile fix\Documents\SigmaKey\security backup3225010178209_7X30A-AABBQMLYM-4000.skb"
Unlocking phone…Done
Restarting phone…Done

tnx sigma