

Navigate to the c:\temp folder and run the following command line:
#MINI VCI J2534 INSTALL INSTALL#
The workaround is to install it manually, as follows:

This is the step which most people stumble upon as “MVCI Driver for TOYOTA.msi” installer indeed does not work on Windows 圆4. Extract that IT3System.ini to the same folder for now. Once executed, it simply unpacks and copies the IT3System.ini file to the Techstream folder. The TISKey.exe is actually a self-extracting (SFX) RAR archive file.
#MINI VCI J2534 INSTALL SERIAL NUMBER#
The “newest” refers to the version of bundled Techstream, rather than the cable firmware, as cable shows serial number “MVCI006000001” and firmware version 1.4.1, which is widely known as “cheap clone of the original XHorse MVCI cable”.

Mine was advertised as “Newest V8.00.034 MINI VCI for TOYOTA TIS Techstream Diagnostic Cable & Software”. The cable comes with a mini CD with drivers and Toyota Techstream software. The cable is about 4’ long, with translucent casing and “MINI-VCI J2534 Standard OBDII Communication Interface” sticker: I‘ve bought mine from Amazon for around $30.
