Thanks guys, I'm learning very slowly.
So If I brick my cxx with a bad flash and the dsg no longer works, can something like the popular pcm flash still connect to the dsg and put back the original eeprom and flash data without opening it up ? Im curious because ME7 type ecus need to be opened up and put into bootmode, I don't think I'd want to risk doing that with the mechatronic unit.
PCMFlash can't recover this TCU if you brick. Only tooL working for recovery to my knowledge is IO.