{"id":3320,"date":"2021-09-24T14:46:34","date_gmt":"2021-09-24T13:46:34","guid":{"rendered":"https:\/\/i-fix.cz\/uncategorized\/what-to-do-if-face-id-stops-working-on-your-iphone.html"},"modified":"2025-07-25T14:32:04","modified_gmt":"2025-07-25T13:32:04","slug":"what-to-do-if-face-id-stops-working-on-your-iphone","status":"publish","type":"post","link":"https:\/\/i-fix.cz\/en\/uncategorized\/what-to-do-if-face-id-stops-working-on-your-iphone.html","title":{"rendered":"What to do if Face ID stops working on your iPhone"},"content":{"rendered":"

What is Face ID and how does it work<\/strong><\/span><\/h3>\n

Before troubleshooting“Face ID doesn’t work<\/em>“, it’s important to understand how the technology works in principle. Face ID is <\/span>
\nconsists of several sensors that are located on the front of the phone, in the so-called notch.<\/span>
\nIf you look closely at the notch, you can find not only the main camera, but also<\/span>
\nseveral sensors:<\/span>
\n– infrared illumination for object recognition at night or in insufficient<\/strong><\/span>
\nambient lighting<\/strong><\/span>
\n– The infrared camera counts the point structure, produces an image in the infrared spectrum and then<\/strong><\/span>
\nsends the created information to Secure Enclave<\/strong><\/span>
\n– The dot projector projects more than 30,000 dots onto the face, guaranteeing accurate<\/strong><\/span>
\niPhone owner recognition reliably and without errors.<\/strong><\/span>
\nThe system produces a 3D image, which is then scanned to identify your face. Initially <\/span>
\nthere may be recognition problems if the hairstyle needs to be changed or there are other<\/span>
\nfactors, however, thanks to intelligent tools, Face ID quickly adapts to external<\/span>
\nindicators and unlocks your iPhone, even if you grow a beard or put on a<\/span>
\nsunglasses or a hat.<\/span><\/p>\n

Which iPhone\/iPad models support Face ID<\/strong><\/span><\/h3>\n

Face ID is integrated into newer devices to improve user protection. Thanks to this <\/span>
\ntechnology was able to improve security and make it easier to log in the owner through face scanning<\/span>
\nin three-dimensional space. This feature not only protects your privacy better than scanning <\/span>
\nfingerprint (Touch ID), but also allows you to make payments, start installing apps in<\/span>
\nAppStore, etc. At the same time, its nature and ease of use makes it much more intuitive <\/span>
\nto use than a fingerprint reader (Touch ID).<\/span>
\nThe Apple giant has introduced this feature in new iPhone models such as iPhone X \/ XR \/ XS<\/span>
\n\/ XS MAX, across the 11th version range (iPhone 11\/11 Pro \/ 11 Pro Max), as well as in iPhone 12\/12 <\/span>
\nPro \/ 12 Pro Max \/ mini, but also in the iPad Pro series – Face ID is available in 11-inch<\/span>
\nsecond-generation and 12.9-inch third- and fourth-generation iPad.<\/span>
\nWhy doesn’t Face ID work on my iPhone X?<\/span>
\nNow we come to the topic: why Face ID stopped working. It should be noted right away that <\/span>
\nthere are several causes and solutions to the problem and all can be addressed either at home or<\/span>
\nby taking the equipment to the workshop. Take iPhone X, for example, where Face ID has stopped <\/span>
\nwork.<\/span><\/p>\n

When Face ID doesn’t work on iPhone X<\/span><\/strong><\/h3>\n

Software error<\/strong><\/span>
\nIf the device has no visual defects, there has been no contact with water, the phone has not been<\/span>
\nstored for a long time in places with high humidity, but Face ID<\/strong> still stopped working, the solution<\/span>
\nmay be a firmware error or insufficient lighting or incorrect viewing angle.<\/span><\/p>\n

What can you try to do in this case? Restart the system. Despite the fact that <\/span>
\niOS is considered the most reliable and stable firmware, like any other system, it is not<\/span>
\nimmune to occasional flaws and mistakes. A reboot can help load properly <\/span>
\nall components of the operating system and load sensors and scanners together correctly<\/span>
\nresponsible for the proper operation of Face ID.<\/span>
\nThe operating system hasn’t been updated in a while<\/span>
\nIf the reasons listed above do not exist and Face ID still does not work on iPhone X, you need to<\/span>
\ncheck iOS update. You can find this item in settings-general-software-update <\/span>
\nand you should pay attention to it and always have the latest firmware version installed.<\/span>
\nImportant! When updating, the battery indicator must show at least 50% to give the iPhone time <\/span>
\ncorrectly download and install all components of the update. We recommend using <\/span>
\nstable internet connection. For example, if the choice is between LTE mobile internet <\/span>
\nor 5G and Wi-Fi, it’s better to give preference to the second option, i.e. Wi-Fi.<\/span><\/p>\n

Setting up Face ID correctly<\/span><\/strong><\/h3>\n

Inexperienced users may set up Face ID incorrectly and then be confused, resulting in<\/span>
\nof which face sensing on the iPhone X does not work, for example, Face ID may not work at all<\/span>
\nturn on or cause scanning errors. So what needs to be done? <\/span>
\nAfter you go to the settings menu and open the Face ID tab, they should be activated<\/span>
\nall sliders that are highlighted in green. For Attention you need to be careful <\/span>
\nand carefully read the warnings that come with this option.<\/span><\/p>\n

\"Face<\/p>\n

Face ID doesn’t work<\/strong><\/h3>\n

If Face ID doesn’t work after all of the above settings, you’ll need to do<\/span>
\nreset Face ID. Resetting is simple and is located in the same menu. Resetting you <\/span>
\nThe iPhone will ask for a numeric password.<\/span>
\nAfter resetting Face ID, you must set new parameters. This will protect your data and <\/span>
\nalso be able to pay by face scan only, without the need for additional passwords and PINs<\/span>
\nbank cards. The procedure is as follows: <\/span>
\n– go to settings<\/strong><\/span>
\n– click on Face ID and code and set Face ID<\/strong><\/span>
\n– click on Start which will start the scan, the smartphone camera should be in the right<\/strong><\/span>
\nat an angle to your face. Do not move or play with your facial expressions during the process so that the sensors <\/span>
\ncould create a 3D image of your face<\/span>
\n– the repeated procedure contributes to more accurate face recognition in the future<\/span>
\nIf everything is done correctly, you will be notified that the process has been successfully completed<\/span>
\nNow we’ll list a few other options that can prevent Face ID from working correctly<\/span>
\nworked on iPhone X<\/span>
\n– seasonal clothing-this happens especially often in winter, when we bundle up in scarves and hats.<\/span>
\nThese additions to our wardrobe can affect facial and camera legibility, which<\/span>
\nis unable to scan and correctly recognize all the necessary points, resulting in<\/span>
\nthe result is that Face ID cannot unlock the iPhone. The solution, of course, is <\/span>
\nsimple-for a short period of time to remove these items of clothing and thus allow proper<\/span>
\nfacial scanning<\/span>
\n– The same applies to the summer season, when users wear sunglasses, masks, hats, etc.<\/span>
\nThe solution may be an item in the Face ID-alternative appearance settings that will<\/span>
\nmust be set<\/span><\/p>\n

– Face ID on iPhone doesn’t work because of the obstructed optics – except for the normal, accidental<\/span>
\ncovering your hands, a new case or new protective glass may cover the holes. If <\/span>
\nthe case or glass is of poor quality or does not match the iPhone model, it may<\/span>
\nThis will cause errors when scanning the face. Then you must choose only such <\/span>
\naccessories that are compatible with your iPhone model and of better quality than you<\/span>
\nthey’ve had so far.<\/span><\/p>\n

What to do if Face ID stops working on your iPhone<\/span><\/strong><\/h3>\n

\"Face<\/p>\n

Have you tried all of the above but Face ID still doesn’t work on your iPhone? In that <\/span>
\nin this case, it is appropriate to consider a technical problem and faulty hardware.<\/span>
\nWhat are the symptoms:<\/span>
\n– Face ID does not work reliably, the background is “like fog”<\/strong><\/span>
\n– Face ID doesn’t work or start – restarting the device didn’t solve the problem<\/strong><\/span>
\n– The screen says: Face ID is not available, please try again later<\/strong><\/span>
\n– When you try to add a face, the image is out of focus and it says: zoom out or<\/strong><\/span>
\nzoom in on the camera (or raise or lower it, depending on your iOS version).<\/strong><\/span>
\nIf the device is under warranty, just contact your nearest authorised service centre and they will<\/span>
\nwill usually replace the iPhone with a new one. In other cases, you will need to contact such <\/span>
\na service that can fix the problem and specialises in this type of repair. In order to <\/span>
\nrepair done well and lasted a long time, you should contact a trustworthy<\/span>
\nservice that uses certified equipment and professional tools. Before you go to the workshop, <\/span>
\nwe recommend you read reviews of the service you are going to take your phone to.<\/span><\/p>\n

Face ID not working after contact with liquid<\/span><\/strong><\/h2>\n

Water intrusion inside the device has a devastating effect on all components in the iPhone. They oxidize <\/span>
\nelements that become covered with corrosion and these cease to interact with the system. If you don’t apply <\/span>
\nphone to the repair shop on time or you may not notice a soaking, even if it is slight, you may<\/span>
\nover time, the individual contacts or the sensors as a whole are completely damaged.<\/span><\/p>\n

So what to do if Face ID doesn’t work on my iPhone after contact with water? It is essential to make it as <\/span>
\nfirst bring your iPhone to a repair shop to have it repaired and cleaned with special products,<\/span>
\nwhich will remove the oxidation and the damaged components will be repaired.<\/span>
\nThe specialists at i-Fix carry out repairs using professional tools and technical<\/span>
\nEquipment. You can contact us at any time for assistance to ensure that your equipment continues to <\/span>
\nworked as it should. In our service price list you will find only reasonable prices without unnecessary <\/span>
\nsurcharges.<\/span>
\nWe always install only original parts or proven analogues that guarantee stability<\/span>
\nfunctions of all components. So if your iPhone with Face ID doesn’t work after contact with water, <\/span>
\ntake it to our technicians who will try to repair it as soon as possible.<\/span><\/p>\n

Face ID on iPhone doesn’t work after a crash<\/span><\/strong><\/h2>\n

Often there is a crash after which Face ID does not work properly or does not turn on at all.<\/span>
\nA familiar situation for many users of not only Apple devices, but also other brands. So what are <\/span>
\nsymptoms and what to look out for:<\/span>
\n– the camera takes many times longer to start than usual<\/strong><\/span>
\n– Portrait mode does not blur the background or does not work at all<\/strong><\/span>
\n– A FaceTime call tells you that the camera is busy with another program,<\/strong><\/span>
\neven though you didn’t turn on anything else<\/strong><\/span>
\n– spontaneous switching on of a lamp that you have not clicked on<\/strong><\/span>
\n– truedepth camera is not working because it is physically broken.<\/strong><\/span><\/p>\n

By the way, it is not always necessary to change components after a crash, sometimes it can simply<\/span>
\ndisassemble the phone and place the components in their proper places, as the fall may have<\/span>
\ntheir displacement or detachment. Another thing is if the Truedepth camera doesn’t work because of <\/span>
\ncracks and other external, visible to the eye, damage.<\/span>
\nIf Face ID doesn’t work and nothing helps<\/span>
\nIf you have tried all the tricks described above and also performed forced<\/span>
\nreboot, you can still try another method – DFU mode. It helps in cases where <\/span>
\nthe phone does not respond to touch at all, freezes and is slow. It is easy to get into DFU mode <\/span>
\nto get it, just connect your Phone to a laptop or computer running iTunes. Once it’s <\/span>
\nthe computer detects, the recovery process starts. This can help when Face ID doesn’t work on the iPhone <\/span>
\ndue to a software bug. You can read how to switch your phone to DFU mode here<\/a> <\/span><\/p>\n

Face ID doesn’t work after replacing the display<\/span><\/strong><\/h3>\n

No one is protected from unprofessional intervention of repair shops, where they don’t know what<\/span>
\nthey do, so it happens that Face ID or TrueTone doesn’t work after replacing the screen. You need <\/span>
\ntake the utmost care when selecting a service centre to provide<\/span>
\nservice level and have positive reviews. Here are just a few of the criteria by which <\/span>
\nyou should get your bearings:<\/span>
\n– the service has quality spare parts in stock so that the customer does not have to wait weeks for<\/span>
\nhandling of repairs<\/span>
\n– service is dedicated to the most difficult fixes possible, including those where Face ID on<\/span>
\niPhone X or other models does not work<\/span>
\n– services include tasks such as replacing displays, motherboards, connectors, batteries<\/span>
\netc.<\/span>
\nAll of these are handled by the specialists at i-Fix Servis and they provide full service and warranty<\/span><\/p>\n

Summary<\/span><\/strong><\/h3>\n

Based on all of the above, we conclude:<\/span>
\n– if Face ID is not working on your iPhone, you can try to fix the problem<\/span>
\nthemselves<\/span>
\n– never disassemble the iPhone after contact with liquid or dry it with a hair dryer, in rice and<\/span>
\nin other ways. It is always necessary to seek the help of professionals! <\/span>
\n– Face ID doesn’t work outdoors – take off your hat, glasses and other accessories that get in the way<\/span>
\nfacial recognition<\/span>
\n– I-Fix Service is always there for you if Face ID doesn’t work on your iPhone<\/span><\/p>\n

Please do not hesitate to contact us if you have any additional questions. contacts can be found here<\/a> <\/strong><\/p>\n

You can follow us on Instagram<\/a><\/p>\n<\/div>

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