My iPhone is saying unknown part but it has never said that before. It happened after I purchased my Apple Watch

Danems Said:

"My iPhone is saying unknown part but it has never said that before. It happened after I purchased my Apple Watch"

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Ungenuine Camera:

Did you recently get the cameral replaced? If so, contact the person(s) who performed the replacement, and have them place a genuine camera in there. They should have known better. See Here: About Genuine iPhone Cameras - Apple Support

Danems Said:

"I did not get anything replaced. Just my screen protector!"

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About this Message:

What exactly is this message referring to? Green? Battery? OR something else?

Click on the Get Support link at the top right of this page and contact Apple Support.