PS4 Pro Beeps Once and Shows Blue Light

After attempting to replace my disk drive, my PS4 will not turn on now.

I have checked my work several times now. I have ensured all cables are secure and not damaged. I have inspected and even used my multimeter on fuses to see if I blew anything obvious.

It currently beeps once, shows the blue light and shuts off immediately. The fan does not spin but I can hear the system hum for a split second.

Try reinstalling the old one. If it boots now then swap pcbs on the disc drives.

I have the very same issue with my ps4 pro I took it apart to clean the dust on the fan.

Now it beeps once shows the blue light for a second and turns off. Can anyone help me fix

Just make sure that the +12V hole on the PSU are tight touching the metal plugs on the motherboard, if not try to lean one of the metals a little to make tight

I teted the psu I get 12v on the part where the 12 flat pins would touch and I gave replaced the psu. Same issue how do I make sure the pins are making good contact with the board?