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I just replaced my battery for the second time, but now my face ID is not working on my iPhone X. Can anyone help?

Have a look at the photo below to help. https://guide-images.cdn.ifixit.com/igi/… There is also an iFixit guide to why Why Face ID Not Working After Repair

Hey after Replacing any components in a Apple Product with the new ios update certain functions of the Phone like face Id or slow response time can occur After repair Which will resolve over time if not then you will have to replace face Id feature hope I can help clear this Question up