Problems you were having.
i originally got the quad camera hat to work on a 3b+. plugged it into a cm4, after the second boot the LED on the quad hat stopped turning one, now it doesn’t work on the 3b+ either. after following all the steps to install the drivers i get
pi@raspberrypi:~ $ libcamera-still --list-cameras
[0:04:17.543949614] [1230] INFO Camera camera_manager.cpp:293 libcamera v0.0.0
No cameras available!
I have regular IMX519 modules from arducam that work fine, so the driver’s installed correctly.
The dmesg log from your hardware.
i dont get any dmesg
Troubleshooting attempts you’ve made.
different OS, different hardware, check cables, different order of installing apps, restart, different power cables/PSUs
What help do you need?
is this board bricked? do i need to get a new one?
If you make sure all the hardware connections are correct, then unfortunately it seems that the HAT is damaged or there is a problem with the cable from the HAT to the Raspberry Pi, because from the i2cdetect results, the HAT is not detected correctly.