Why my iPhone is unknown display?
Why my iPhone is unknown display boss 🙏🏻
[Edited by Moderator]
iPhone 11
Question marked as
Check here -> About genuine iPhone displays
About genuine iPhone displays - Apple Support
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An Unknown Part 
message will appear if the display installation is incomplete or if the display:
- Was replaced with a nongenuine display
- Was already used or installed in another iPhone
- Isn't functioning as expected
An additional message might appear that says "Apple has updated the device information for this iPhone." This means that Apple has updated the device information maintained for this iPhone for service needs, safety analysis, and to improve future products.
These messages don't affect your ability to use your iPhone.
Learn more about iPhone parts and service history.