MMM V3 - Castle, I need some help

[Helly]

I have retry my MMM,

just 13.2V A123, MMM no other electronics...

ON and just a little little white smoke come here by the hole in the center of the red circle:



I have try it like 5 times, juste a little white smoke. After the 5th time, no more smoke...
Just the 3 Led who flash a lot quickly than a normal MMM

The Castle link work perfectly...

After that i have tested with a radio system. no answer, just a lot lot lot of led flashing...

Dead.