my iphone is already updated to ios 15 but still can’t use face ID please help me!

Hi there danastig,

We'd like to help with the issue you're having with Face ID, but we need more details to understand what's happening:

1. What exactly occurs when you try using Face ID? Any error messages, behaviors, etc. The more details you provide, the better equipped we'll be to help.
2. If the issue is the same one described in the article listed at the top of your post, have you already tried the steps listed, which includes having it serviced through Apple? Here's the link again just in case: If an alert says Face ID has been disabled on your iPhone or iPad Pro

Have a good one!