R3 Tools Pro - Waiting for USB Port...OK Set MediaTek PreLoader USB VCOM Port (COM22) Baud : 9600 Connected to Phone.OK Cpu : MT6582 SW: 0100 Ver : 00CA => 0xFD65820000 Set
device does not enter vcom mode. | XDA Forums
How to install Mediatek USB VCOM drivers - Page 5
Download and install MediaTek Inc. MediaTek PreLoader USB VCOM Android - driver id 51681