Hello, I know the answer for this message, One time when I fixed true Delphi in the XS max I got the same message and problem is inside Face ID, in same place where is location true Delphi you got a sensor of temperature hi name is NTC thermistor if is faulty then system read 99 degrees and you got this information when you try to set Face ID, your phone no need be hot, no worries this part much from most different face is models IPhone but you need have skill level to fix this problem.
I hope my answer is very helpful
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Hi - were you able to fix the problem? I seem to be experiencing the same. ¯ Natalie
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