MRST V4.4 VIVO MTK6893 AND MUCH MORE ........

[DYNET]

>>> Connecting Mobile Com Port...
    Get Mobile Port: COM10
>>> Driver Identifying name:
    MediaTek PreLoader USB VCOM (Android)
>>> Mobile Connection is Normal...
>>> CPU_NAME:MT6893
    CPU_NAME: MT6893
>>> Reading Mobile Hardware info...Success
    HW_Inf:  8A00    SW_Inf:  CA00
 >>>>> downloading boot1 to device...
>>> Triggering  Mobile Phone...
Success
>>>>> Device Boot1_Size: 0x00055598
 >>>>> Calling Magic Key ,,,,,,
 >>>>> Device meid:
 00000000000000000000000000000000
 >>>> Downloading boot2 to Device...
 >>>> Bypassing Preloader ...
>>>>> Device Boot1_Add: 0x0023BDF8
>>>>> Downloading 0x0006995C
>>> switch hight speed re,wr port...
>>> Connecting Mobile Com Port...
    Get Mobile Port: COM11
>>> Driver Identifying name:
    MediaTek DA USB VCOM (Android)
    Get Com Port is:  COM11
>>> Driver name:
    MediaTek DA USB VCOM (Android)
>>> Reading Mobile GPT data...Success
>>>>Flashing userdata...
    Start Add: 0x03AA000000 Length: 0x1A1EFF8000
    File length: 0x032FE388
    >>>>Task Finished<<<<

[MRST Tool]

Download Setup installer 
MRST_Dongle_Setup_V4.4