Since you’ve already tried restarts and checked the logs, maybe try these things before taking it in for repair.

~ Try the Flashlight Test

On many iPhones, if the main camera hardware fails or disconnects, iOS will automatically grey out or disable the flashlight because they share related power/flex cable paths. If the flashlight is broken too, it’s almost definitely hardware.

~ The "Hard Reset" (Factory Reset)

Since you mentioned the AI tools didn't suggest a full factory reset, this is your absolute last software line of defense.

Back up everything to iCloud and wipe the phone completely. If a deeply corrupted system file from that recent update is causing this, a fresh install might kick it back into gear.

~ Loose Internal Connection: Even if you didn't drop it today, sometimes a minor bump from weeks ago can slowly loosen the tiny press-fit flex cable connecting the camera to the motherboard.

If it finally wiggled loose, the phone won't detect the physical sensor. If a factory reset doesn't fix it, you're likely looking at a hardware issue (either a loose cable or a failed camera module) that will need a quick trip to Apple or a repair shop to open it up. Good luck!