ZTE vodafone vfd 510 how to unlock?

Hi all please help me i have Vodafone VFD 510 and tried to unlock it but no succes:confused:
here is log

--------- 2018-03-28 19:26:43 ---------
SigmaKey 2.27.13b3 Qcom: Direct unlock
ZTE Handset Diagnostic Interface (COM325), Provider: ZTE Corporation, Driver ver.: 5.2104.1.2, Date: 17/03/2014, USB\VID_19D2&PID_0249&REV_0310&MI_00
Version: UK_VDF_P809V51V1.0.0B14,
Firmware: MPSS.JO.3.0-00291-8909_GEN_PACK-1
Date: Jul 18 2017 19:03:34, Apr 24 2017 03:00:00, 8909.gen
Software IMEI: 352249091474319
Bluetooth address: 000000000000
Unsupported phone model