Face ID Failing After Installing iOS 16.3.1

I am not able to use Face ID. After upgradate to ios 16.3.1 .But when i restart my iphone i am able to use Face Id for a while.My Device is iPhone 11 Pro Max.

What can I do now.I tried to clean my notch with alcohol pads.And also reset my face id. What can i do now?

Please keep me posted.

[Personal Information Edited by Moderator]

Capacity is not the same as charge voltage; your reply exhibits a fundamental misunderstanding of how DC electronics work.

What’s more, Face ID does not spontaneously work while the phone is plugged in either.

Additionally, your idea that FaceID is “power demanding”, as opposed to say, mapping rooms with the integrated LiDAR and then processing the resulting point clouds (both of which I do daily) is just uninformed bananas.

How is 83% nearly the end of life for the battery!? If you had a laptop for a year, would you say the battery is dead, even though it lasts a full 4/5ths as long as it used to!?

I think my annoyance with this is that customers with your mindset enable the behavior that created the problem, and if they replace the battery and it works you’ll be happy, even though it’s all nonsense, the same as the last couple lawsuits apple paid a fortune out to resolve.

blah.

This isn’t intended to be an appeal to authority, but I’m an engineer with a robotics and electronics lab in my basement. I work at a small lab designing small weight and power solutions to technical and defense problems.

Your “mindset” is founded in not understanding how batteries work and what “battery health” means: FaceID is absolutely not a higher power demand than, say, the screen. Or the speaker. Much less cell, lte, wifi, and Bluetooth.

If swapping the battery fixes the issue, it would still indicate that this is either a software bug or, worse, planned obsolescence, for which apple has been successfully sued more than once.

I can Connect to the front cameras directly. I Can see that they work correctly: they receive power, I can get an image, and the data that would be used to perceive depth.

What I can’t see is how they interact with the faceID processing code, which is the same power consumption as, at most, taking a couple roots, and much less than most other continuous iPhone operations. 

I perceive your space to be conspicuous as a consumer because you tell a guy who acknowledged successful jurisdictional interactions with this company as “wearing a tinfoil cap” (and my previous response was interpreted and negated, but your ideas were preserved). 

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Now imagine for a second you bought your first iPhone, and saving for it was a big deal, and you’re having this exact issue. Before the update, faceID worked even when your battery was super low. Now it doesn’t, even when your battery is fully charged (if this doesn’t make sense, do some research before responding). You can’t afford another phone. Android users aren’t experiencing these issues (ever) because updates to that OS aren’t occluded or obfuscated.

Thank you, that may explain the issue with my son's face ID not working as he had his screen replaced recently... Mine however, was not ever replaced, everything is the original. I keep trying to reset the face ID (sometimes it won't even let me, and every once in a while it works, but then after a day or so it stops. It's so bizarre. So if someone had their screen replaced, will his face ID ever work? It was replaced through verizons warranty plan.

Totally unnecessary, in this case my "tin foil hat" has nothing to do with my face ID randomly stopping only after the update was performed. However, in many other situations, which don't apply to my iPhone, my tin foil hat is always correct in the end. Have a nice day!

Amy_applefan wrote: "...Apple developers, take note please!"

Although Apple administers these communities, that doesn't include reading each of thousands of daily posts for possible feedback. However, Apple will "read all feedback carefully" here:

iPhone Feedback

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yeah mine stopped working the second I updated to iOS 16…. Like nothing happened to my phone. I updated and 5min later it magically won’t unlock and it’s a hardware issue. Sure. That’s how hardware works. It just randomly stops functioning because of updates and these things aren’t related at all….

How did you get Apple to give you a replacement. I updated (I believe) at 16.2 and I didn’t want to but I was told that my deleted texts would come back in a deleted text folder (it did not. They claimed to ask a supervisor because I was apprehensive but they assured me this would happen. Not true.) Then my Face ID immediately stopped working. Now with the 16.4 update my phone is ghost writing after it auto updated…. My Face ID still doesn’t work.

Same here. iPhone X Face ID worked without fail for over 5 years no problem. Until I upgraded to iOS 16.4.1. It now states Face ID has detected a problem and has been disabled and all steps to reactivate have failed too.... So let me translate... "We at Apple want you to buy a new phone and so covertly and dishonestly we are stopping the phone from using a key function so that it inconveniences you so much that you buy an upgraded iPhone from us" ...

Anyone remember the legal action Apple faced after slowing down and killing batteries remotely of older phones .. they admitted as such and this is just another ploy and tactic to get more sales. B*****s!

Jazza1811 wrote: "iPhone X Face ID worked without fail for over 5 years..."

Jazza ~ Does your iPhone X still have its original 5 year-old battery?

And what's the Maximum Capacity % here?...

Settings > Battery > Battery Health & Charging

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I updated with a power cable connected. The update was seemless and complete. The true depth camera functionality has nothing to do with power or battery status. Please research the growing number of users who have all experienced the same issue with Face ID after the latest software update … nice try though.