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Why does an iPhone display an "Unknown Part" warning message after a display repair?

A
AlexChen1
Published on August 11, 2026
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What causes the "Important Display Message: Unknown Part" notification on iOS after changing a screen? Find original display info on iPhones PK original iPhone store.

Community Answers (1)

E
ElenaRusso5 Rep: 918
Answered on Aug 11, 2026 at 9:52 AM
Best Solution

The "Important Display Message: Unknown Part" notification appears because Apple cryptographically pairs the display IC serialization directly to the iPhone's logic board. If a new panel is installed without being paired through Apple System Configuration tools, iOS flags it under Settings > General > About > Parts & Service History.

iOS Unknown Part Warning Message Settings Page

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