Microdriver Board Power Issues

Hello @thomas.flayols

I have a microdriver board that currently stopped working without any visible fault. I have traced through the circuit but no visible issues. I tried to apply 3.3v to one of the 3.3v ports and the board powers up but the chip heats up so much that I fear it will burn out, so I disconnect power. Is there any advice on what could be the issue and how I can get this board back up?

Thank you