New iPhone says the dislay is an unknown part.
I bought a new out-of-box phone but it says the display is an unknown part.
[Re-Titled by Moderator]
iPhone 11, iOS 17
If you bought it 100% new and not refurbished, go back to the store where you bought it and claim a warranty claim under hardware failure. If the iPhone is new, the display should not give the unknown part error, so there is a good change that there are hardware issues going on.