The iPhone 11 front camera and Face ID system share the same sensor array, but the IR flood illuminator is the component most often damaged during a drop. When Face ID fails but the selfie camera still works, the flood illuminator or dot projector is the suspect, not the front camera module itself.
Separating the Failures
| Symptom | Failed Component | Fixable? |
|---|---|---|
| Selfie works, Face ID fails | Flood illuminator or dot projector | Transfer original array only |
| Selfie black, Face ID fails | Front camera module | Replace module, transfer array |
| Face ID says move lower/higher | Dot projector alignment | Re-seat bracket |
| Face ID works in bright light only | IR camera or flood illuminator weak | Array transfer or replacement |
Why the Array Cannot Be Replaced
Apple pairs the flood illuminator, dot projector, and IR camera to the logic board at the factory. A new array from another device will not enable Face ID. The only way to preserve Face ID is to transfer the customer's original array to the new screen.
Screen Replacement Workflow
- Heat and carefully remove the original Dynamic Island bezel assembly.
- Keep the array flex completely flat; any bend can disable Face ID.
- Transfer the metal cover and alignment posts to the new screen.
- Reconnect both flex cables and test before sealing.
Parts to Order
- iPhone 11 replacement parts
- iPhone replacement batteries
- iPhone charging ports
- iPhone camera modules
- Speakers and haptic motors
- iPhone flex cables
- SIM card trays
Customer Communication
Always warn customers that Face ID may not survive a screen swap if the original array is already damaged. Document the pre-repair Face ID status to avoid disputes.
Frequently Asked Questions
Can Face ID be restored after the array is damaged?
Only Apple can pair a new array. Third-party shops can preserve working arrays but not create new pairings.
Does a screen replacement always break Face ID?
No. A careful transfer of the original array usually keeps it working.
Why does the selfie camera still work if Face ID fails?
The selfie camera is a separate module. Only the IR components are paired.
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