I am also facing same kind of problem with my new multilink universal programmer version C. All voltages on micro-controller boards are ok. when i am connecting BDM blue light turning on.
After connecting to target orange light also turns on. ( connection happens) But when i am connecting BDM programmer input voltage drops .(i/p voltage= 10 V, after connectingBDM programmer power supply getting into CC mode from CV mode, and power supply voltage drops to 2.5V), by default VCC (5V) also drops.( i think there must be some short circuit happening, but dont know where exactly). I tried all things on my controller board. But facing same thing.
What can be the problem???
Thanks & regards,