I have experimented a bit further without much success, even worse now the Erle Brain 3 seems to be dead, even if I connect power, i.e. connect the NiMH battery, nothing is gonna happen anymore. If the Erle Brain 3 is looking dead, what could be a potential reason? Failure of the power module? Or entire failure of the Brain itself?
I am sure it is hard to judge from distance, but since nothing has worked so far for me, any help / ideas is really appreciated.