What does it mean when there is a red 1 as well
I don’t understand what it means to say the face detector has been disabled and there is a red number 1 I was just given my phone lastnight
I don’t understand what it means to say the face detector has been disabled and there is a red number 1 I was just given my phone lastnight
The link on top of this page which you had visited, before posting this question here, is shown under the "Related Article” that may have given you an answer.

iPhone Camera
With iPhone 12 models and later using iOS 15.2 and later, you can go to Settings > General > About to see the parts and service history of your iPhone and you can see if the camera has been replaced. If the repair was done using genuine Apple parts and processes, you will see "Genuine Apple Part" next to Camera.

Parts and service history
With iOS 15.2 and later and iPhone XR, iPhone XS models, and later—including iPhone SE (2nd and 3rd generation)—you can go to Settings > General > About for the parts and service history of your iPhone. You can also find out if the battery has been replaced. If the replacement was done using genuine Apple parts and processes, "Genuine Apple Part" will appear next to Battery.

Do you have a disabled Face ID alert on your device?
Please read the "What to do Next" section in this link, if nothing works as per the instruction given in this link --> If an alert says Face ID has been disabled on your iPhone or iPad Pro
It would be better if you can please re-post with a screenshot, in order to understand the phenomenon better. Images/pictures speak louder than words.
Please understand this is a public forum: While attaching a Screenshot, do not provide any personal credentials, such as IP address, Card detail, email id, apple id, IMEI number, Serial Number, Phone number, Order ID, if you are sharing a map ensure your location is not identifiable, etc.
What does it mean when there is a red 1 as well