After updating, have message unknown part for camera

Hi Mahdy01,

We appreciate you reaching out to us.

Does it help if you restart your iPhone? Restart your iPhone - Apple Support

If no, let’s check for a software update and make sure that you are running the latest version of iOS 16.

While it isn't inherently assured that an update will resolve the issue, updating to the latest software version for your device can help isolate potential software issues. 

Kindly secure a backup and update.

How to back up your iPhone, iPad, and iPod touch

Update your iPhone, iPad, or iPod touch

If you are already using the latest version of iOS 16, it is best to have the device inspected by a technician at an Apple Store or Apple Authorized Service Provider.

As mentioned in the article below, "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"

About genuine iPhone cameras - Apple Support

You can use the "Get started with camera service" link in the article to explore your service options.

Take care!