Installation Instructions For Mini VCI (these instructions where supplied with mine)
Please make sure your windows system is 32bit(Windows xp or 7), the 64bit system may cause problems.
step1. install "TIS_Techstream_Setup.exe"
step2. After software installation open C:\Program Files (x86)\Toyota Diagnostics\Techstream\Env\IT3System.ini,
and change "TISFunction = 1" to "TISFunction = 0".
Save.
2.1 Install "MVCI Driver for TOYOTA.msi"
DON'T UPDATE DIAGNOSTIC CABLE FIRMWARE, IT WILL BRICK YOUR DEVICE!!!
step3. Run the "Techstream" on desktop,
3.1 Select the area as "Europe",
3.2 Select the language you want,
3.3 The register information, you can write everything you want, fill all the blank, then OK.
step4. Interface Select
4.1 Click the [Setup] menu, then click the [VIM Select], then select the [Xhorse-MVCI] in the drop down list of "Interface Setup", then Click [OK]