VS3 dont conekt for COM_port
 

I have orig USB cabel.
Push *#Pover for phone in TEST_MODE
Instal DRV
Modem in COM4
Push Unlock -
Err:cant open COM4
COM4 not avaliable.

Pls, double check modem com port No.
Maybe need to reboot PC after driver installation.

if problem still exist, try to use COM-port cable, not USB.