It's a good tool for the GM ALDL, JEEP RENIX, & FORD EEC IV, OBD1.5, and even early OBD2. It's missing a few important functions like GM ABS bleed tho.
I kept my MT2500 for the OBD1 adapters and occasional use. The brick and cartridges aren't worth a lot without the adapters.
I use my 12.4...
80's through 91 Euro stuff has near zero serial ecm diagnostics.
If any of them do it would be BMW and Benz.
You're better off to look around with a multimeter and oscilloscope.
Before you mess around make binary images of both cards.
I use Win32 Disk Imager to make images of compact flash and SD cards and whatnot. It's very very basic software.
https://win32diskimager.org/
Disclaimer; This is how I make backup images of combat flash SD Etc.
If you blow up your...
Agreed on the Brick. I have the 1999 Domestic primary cartridge and 1993 Asian, Chrysler, Ford, and GM primary carts and a raft of OBDI adapters. I also have the OBDII adapter and five K keys so it will talk to OBD1.5 GM stuff. It's fine for OBDI and RENIX Jeeps too but there are better tools...