Sounds liek you got one that does nto do programming. Re-read the add and look specifically for "DOES PROGRAMMING".I just bought MUT3 from ebay , and it says something like this :
NO CARD SLOT
PROGRAMMING module is made into the PCB board directl
Am I able to use the programming function ?
What does programming actually do ? Program keys
Programming means the hardware is capable of isntallion ROM images into assorted computers (TC-SST, ETACS, ECU, ...). A non-programming hardware model is not capable of wriging programs to assorted modules and/or computers.
All of them read codes, OBD2 stream data values. and allow user-mode settings (like how may times the blinkers flash, door unlock settigns, etc.).
In order to write different codes to the assorted computers you will need a programming version.