Why shows camera unknown part

Hey there n_pal,

Thanks for reaching out to the Apple Support Communities. If seeing Unknown Part message next to Camera in Settings > General > About, check out the information below that may be able to help:

You will see an Unknown Part  message if the camera installation is incomplete or if the camera:

• Was replaced with a nongenuine camera

• Was already used or installed in another iPhone

• Isn't functioning as expected

This message doesn't affect your ability to use your iPhone or access your camera.

This information and more details can be found in this link here: About genuine iPhone cameras - Apple Support

We hope that's able to help.

Best regards.