Okay, I got TMC working. My sys.txt was set to UC instead of EW. Changing that enabled TMC.
Unfortunately enabling TMC somehow broke my bluetooth (if i check the version of the software it doesnt show anything, switching bt on and off causes it to fail and disable completely. I have tried changing the COM ports as suggested by matyana here. That hasn't fixed it. I also tried updating the bt firmware to 330, which also didn't work.
I'm going to be playing around a bit with the COM ports a bit and see what happens. I also read about someone having succes with older bt firmware, I'll also