Other than checking the debug info and then searching the internet for similar issues and fixes, I'm not sure where to go from here. Sounds like it might be critical.
I have 4 smashed S9s here, so I'd like to swap the camera out. I just can't access the back of the phone. The glue that holds the glass is solid. 3 minutes under the grill and I still can't get it to lift. PITA
I've had to replace the USB port on my S9 3 times and the fingerprint thing once.
Pro-tip - if it breaks it's much easier to remove. I just order a new back glass now along with the part I'm replacing every time I have to open it.
Other than checking the debug info and then searching the internet for similar issues and fixes, I'm not sure where to go from here. Sounds like it might be critical.