Here are all experience of Chinese GM Tech 2 interface for SPS programming and hardware key issues. You will get useful tips/guide. Have fun.
Because every card to one brand cars. If you want to do more brands, they will ask your pay extra fee for other cards.
Hope it be useful.
There’s no need of drivers and Opel tech II is an Auto exec file, so it doesn’t need to install.
I Hope it’s been helpful 4U
Until today I’m using tech2 clone from china it does SPS and all, still working fine I have a software emulator for dongle it works great on American NAO, Brasil, Isuzu, I do SPS on all this vehicles with no problems. just make sure you get a card for SPS, snapshots and it will work.