Is there a way to diagnose this camera issue? Like some kind of crash dump or log? [unrooted Galaxy Note 9]

After water damage, my phone camera had to be replaced. The camera worked after replacement, for a day or so. Then it came up with a black screen (menus are there, just no image). A reboot fixed that for a day, but now it's back and rebooting (even to safe mode) doesn't help. It's been long enough that it's dry but I know there could be residual damage. I'd just like confirm whether it's hardware or software. Is there a log that might provide a clue? And can I view it without root?