xt1641 unlock failed need help

Unlock4samsung Friday, December 7, 2018

hi gcpro team i want to unlock g4 plus xt1641 with gcpro dongle i downgrade baseband and try to unlock but failed please help me how to unlock this phone
here is log

Using Version...1.0.0.0060
Selected Port Motorola QC Diag Port COM6
Selected Model GT-I5500
Selected Task Moto Unlock

Searching phone...

Build...MPSS.TA.2.1.c3-00004-8976_GEN_PACK-1

No usable adb device found...

Motorola Unlock Started..
IMEI-1 := 354120070546760
IMEI-1 := 354120070546760
IMEI-1 Read-Only Fail to Write..
IMEI-1 := 354120070546760
IMEI-1 Fail..M3OJN3SLN3SONzQAITMgwxUs4gIWBDIsYMgy3tARKm4G ZDuBtVigIkcw6QpjWCAxnOLNHMFmOoOMMjEAAA==
IMEI-1 := 354120070546760
IMEI-1 Fail...M3OJN3SLN7SMN3SNNwMiIMMCB3KFkUD1QF3OYAZcFqj RESoOMsQp3tAALO4I0+UIVu8I1mgZb2IAAA==
Retrying...
Fail to write gsm simlock. 3

!!! Fail !!!!
Restart Phone if not auto...
Total Time Take...00:00:54
Log Saved