Pi 4B not booting

Hey! So I've gone through the troubleshooting sticky guide and I can't seem to figure out what's wrong with my pi. I'm getting 4 slow green blinks and then 7 fast ones which supposedly indicates that kernel.img is not found but I've properly formatted and then flashed my SD card MULTIPLE times with different OS's using the Raspberry pi imager. I have put the correct version of the OS (64 bit) so I'm lost now. What is wrong?

I'm not getting any output whatsoever on my display with the SD card plugged in

I've tried with a USB too by putting the SD card with the boot from USB thing and it even gives the green screen it's supposed but then it just refuses to give any output

Found out the problem

damaged motherboard 😭