Is it power supply?

I started do take the ps4 apart do replace the fan but i didnt i only got out the power supply and cleaned it i put all things back together but it didnt work anymore is it the power supply please help.

at that point the only thing that usually fails is the flex cable connecting the disc drive board to the motherboard, check if it’s connected correctly…

I checked it was connected properly and tried afain but no go

try to start up the console without that flex cable…