Unknown Part Unable to determine if your iPhone camera is a genuine Apple part. This could be because the part is non-genuine or not functioning as expected, or the installation is incomplete.

"[...]I haven’t taken it to anybody to get fixed, as I said before it was working fine. So how come it says that my camera is an 'Unknown part'. I’ve been reading many people have the same problem so I don’t want to take my phone to the store to get it “fixed” and find out a $700 bill in my account after."

-------

Perhaps this is a Faulty Device?:

Is Apple the seller? If so, see if you can get this error fixed. Being faulty, it likely would be nothing on you. Ask Apple Support to rid of the error, or if found to be faulty, then it may be a factory error. Perform a screensharing session with them to show them this error.

Apple Contact Us Info:

• Contact Us - Choose Locations
• Proceed from there as Necessary
• NOTE: Due to the Coronavirus Pandemic, calls are taking a bit linger to get through. And, that makes sense, because many are at home working out-of-the-house or are taking classes over-the-web, this they have more time on their hands to contact Apple Support. So, it might take a bit to get through to Apple Support. But, just stay on the line, and someone will be with you :)