Allright, I've checked my connector, it's a 2.1mm. I'll check what is fried on the psu boards with the help of this wiki page :
/g/QRPLabs/wiki/37128I hope I didn't break anything beyond the psu boards, well... I'll see.?
Honestly, if it's the case I may give up on this project. I've bought two units in kit, I got one for a friend but I'll keep it on the shelf until I've fixed this issue.
I'll be really happy to have this rig running but it's no fun to get a rig that can instantly go qrt if you wiggle the power cord too much.
I'll report back on how it goes.