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Lançado em 26 de outubro de 2018. Modelos A1984, A2105, A2106, A2108. Disponível como GSM ou CDMA / eSIM, nano-SIM ou SIM dual / 64, 128 ou 256 GB / Preto, Branco, Azul, Amarelo, Coral ou Vermelho. (Pronuncia-se "iPhone 10 R.")

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Face ID (TrueDepth) stops working after screen replacement, twice

Hi,

Have been repairing iPhones for the quite a while now.

I recently repaired 2 XRs and have issues with FaceID not working where settings says there's an issue with the TrueDepth camera and Portrait mode with the front camera tells to you move further away.

Both times were very similar, first time I thought it maybe I have damaged the flex cable in the process of transferring the ear speaker flex but after this 2nd time in nearly the exact same process of how it stops working. I have some theories and suspect something else is going on and it may be done intentionally by Apple, so I want to know if anyone else here had similar experiences/

Both times, Face ID had no error message after installing new screen, the moment I seal the phone in and turn off airplane mode and the phone connects to the internet. Face ID breaks. now I'm not 100% sure its thatat this stage given I only get one chance to test this per phone. I have double checked all Face ID component connections to the logic board.

Even turning airplane mode on at this point won't fix it. My theory is that the phone is doing some checks when its connected to the internet and disables face id on purpose, what it's checking I have yet to find out.

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I had the exact same scenario. I put together the screen, test it with screen still sitting above case to make sure everything is right. I even registered my face lock and everthing was great.

I sealed the screen to case and try to unlock. Boom a message pops up saying problem with TrueDepth camera and face id seems to have gone. Tried resetting / factory reset etc. Nothing helped and thought I messed up when closing the screen/case. When I see an exact same scenario here it makes me think some software disable is what is happening here.

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perhaps, the trouble from: the proximity sensor flex cable, hardware serialization or flex cable

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I don't think you're alone here. I'm fairly certain that I read that the iPhone XR's screen is paired to the motherboard (or some other part, I can't remember which), and replacing it without Apple's proprietary software knocks the face ID function out. No, this is not accidental. Apple deliberately did this to discourage repair and make more money from- well, you get the point. You'll either have to live with it or do microsoldering to transfer an ID chip from the old screen to the new one.

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I have an internal Apple document specifically listing the parts that are paired to the motherboard (exclusive of Face ID), and for the XR, XS, 11 and 2nd Gen SE series, the only part that is paired is the battery; the display is NOT paired on those phones.

That's not to say there isn't some chicanery on Apple's part happening where it may detect an aftermarket screen and pull that kind of garbage, but Apple itself documented that the screen is not paired on that phone.

Have you guys done any experimenting with either putting the original screen back on to see if Face ID comes back, or else trying a (used) genuine Apple screen for comparison? I'd be curious to hear how that turns out.

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Well, either way, Apple did SOMETHING that deliberately made screen replacements reduce functionality of the entire phone. I wouldn't be surprised if there were another way to do that that didn't involve parts pairing. I do know for a fact that Apple did pair the screen on a few other models, and in any case, Apple doesn't want you fixing your phone. Why? Because they make more money if you can't and so decide to buy a new one.

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Eddy M será eternamente grato(a).
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