Unable to activate Face ID on my iPhone 11

okpabi wrote:

My face id refuse to activate

That is usually a hardware problem, but start here→If Face ID is disabled on your iPhone or iPad Pro - Apple Support

Also, make sure your case or screen protector is not blocking the TruDepth camera or infrared emitters that scan your face.

Please take a look at the following article ⇢

If Face ID isn't working on your iPhone or iPad Pro - Apple Support