The console is at black screen, even with chip removed.Do the console boot without the chip? If not check the 3.3v rail if it is shorted or not. If it is not shorted check the voltage when you plug the power cable in to see if the 3.3v rail give you 3.3v or not. If it is not then check your 3.3v regulator.
I followed your suggestion and got an "overview" with the thermal camera, you were right! It looks like it's +7780 1EWP IC, which seems to be a buck converter for the +3.3V rail I imagine. Thank you for your help!
I attached few photos, it started to overheat as hell with only battery connected.
Does anyone know where I can source this IC's easily (withou Ali waiting time)?