I upgraded iOs to 12.4 yesterday on my iPhone XS and am having problem with Face ID since then. There is no other temperature warning. Only Face Id seems to be having problems. Have tried restarting, restoring but in vain. Any ideas how I can resolve this problem?enter image description here

  • When did you get this phone? Are you charging while trying this? Sometimes the phone gets warm when charging. – existing person Aug 17 at 4:54
  • 3
    Possible duplicate of Cant access to the camera on iPhone 6 – Nimesh Neema Aug 17 at 4:54
  • If you know temperature isn't the issue (eg: you're inside A/C, not charging, and the phone doesn't feel warm to the touch), the issue is most likely a malfunctioning sensor. Could be due to water damage, but regardless, I would take it in to an Apple Store to get replaced. – technogeek1995 Aug 17 at 15:41

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