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2017年11月4日に発売。モデル番号はA1865, A1901です。GSMか CDMA / 64か256 GB/シルバーかスペースグレーあり

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Help me diagnose iPhone X Face ID move iPhone a little lower

Hi! I have an iphone x with face id and selfie camera portrait mode not working. For the moment I don't know if any of the internal components were changed or not.

Here is what I know:

  • face id fails to detect a face during the setup process. Keeps sending the two messages: move iphone a little lower/higher
  • Animoji works ok though
  • Flood illuminator also works as I can see it with an older camera
  • Proximity sensor and autobrightness are functionally
  • Attention thing works (when picking up the phone it turns display on if it detects any human face)
  • Front camera works (without any blur) aside from the portrait mode (It says move further away and only takes a normal photo)
  • Back camera works ok, portrait mode is functioning
  • Phone has liquid indicator turned red (unfortunately I haven't saw this before buying it)
  • The phone seems to have been opened up before as the adhesive was loosen whet I opened it up.
  • I have tried to clean the dot projector and the infrared camera along with the lens on the front glass but without luck
  • I have tried also the DFU restore, and every type of reset
  • Iphone is running ios 12.3

My question is that if the display is changed without transferring the other components from the glass assembly, will iphone send the faceid unavailable error or it could just never let you setup it like in my case?

Has anybody been able to repair an iphone x with these symptoms?

Thanks a lot!

Update (05/29/2019)

Photo taken while trying to set up face id

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Ir camera,Flood illuminator,front camera both are necessarily need from the same like fingerprint .

Apple encrypt this all to compatibility for only one iPhone.

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Hi! I know this. My question is if you change any of these components will the phone send you a message saying face id is unavailable? Or it can also have the symptoms that I have described. I'm trying to figure out if I still have the original parts

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I have yet been able to find a solution to the problem, but I have found a fairly definitive way to test for the issue.

Answer to your first question: If an LCD is changed and you do not swap the components on the LCD, Face ID will error out when you try to set it up. It will also tell you that Face ID failed to initialize when your phone first boots up.

To answer your second question there is a lengthy explanation, but I will try to keep it short.

I made a compilation of images including using the image provided by iFixit. The iPhone X flex has a proximity sensor (Red circles) and Flood Illuminator (Orange Square) - The second flood illuminator is with the camera assembly, but it won’t turn on until it starts to “record” your face.

I have found that the flood illuminator on the flex will not turn on for phones that have an issue with recognizing your face. This is where it will say “move your iphone higher, then move your iPhone lower” over and over again without ever successfully recording your face.

You can easily test this issue by using another phones camera to able to see the infared lights. Compare to the image below.

Bottom Left - Functional Face ID. You can even see two Purple dots through the LCD, so you don’t have to take apart a phone to test this issue.

Bottom Right, only the proximity sensor IR LED is working. Face ID will not work.

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I have yet to find a way to fix this issue. If someone else finds a fix, please post!!!

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Hi @macalegin ! Thanks for sharing your experience!

From this video https://www.youtube.com/watch?v=PV7JMZzz... it seems that if you replace either the front camera assembly or the earpiece flex you will end up with the same symptoms as in my case.

So you one could tell if an iphone x has any component related to face id replaced?

I have added in my question a photo from the sensors while trying to configure face id. It seems that only the proximity sensor is staying on and no signs of life from the flood iluminator.

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Hi Paul,

Thanks for the link.

To answer your question of whether you can find out if components have been replaced…

I recommend using 3U tools. http://www.3u.com/

Whether to fully trust this software on a personal computer is another question, but this tool is loaded with features including a full report showing if parts are original or if they have likely been changed.

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ionescu.paul さん、ありがとうございました!
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