[SOLVED] PC turns on after turning psu on (black screen)

[lookingforanswers]

So earlier today, I wanted to update the software with MSI live update 6 and it also included a bios update. I ran the live update and the screen went black and nothing else worked other than fans (i couldnt see if the mobo was also working, i just heard fans spinning).
So i opened it up and when i plugged the power in and turned the switch, the mobo automatically turned on and it had VGA and CPU lights on in the EZ debug lights section. Also the fans spun ( cpu fan, case fans, psu fan and gpu fan).
The power button doesnt work and the fans just keep spinning if the psu is turned on, it doesnt stop, i watched them spin for 10 min.

System specs:
Mobo: MSI B450m Gaming plus
CPU: AMD R5 2600
GPU: Zotac GTX 1070 8gb
RAM: 16gb Corsair (3000mhz)
SSD: 256gb crucial mx5
PSU: cooler master 500w (its a bit old)

I also tried switching to another psu (750w), I plugged the mobo and cpu in and the same thing happened.
I tried flashing CMOS, it didnt work.

One more thing to note is that the keyboard doesnt turn on when i turn on the psu. I cant boot because the power button doesnt work or the cpu ez debug light is stopping it.

 

[scout_03]

did you shut down system when bios was updathing .

 

[lookingforanswers]

did you shut down system when bios was updathing .

I believe so, the screen was black. Is there any way to get out of this mess?

 

[scout_03]

check cpu pins first and if it ok the board could be brick try rma if it stil under warranty .

 

[lookingforanswers]

check cpu pins first and if it ok the board could be brick try rma if it stil under warranty .

The cpu pins are fine, there should still be warranty, I hope everything gets solved. Thank you for your time.