iPhone Face ID Not Working? 9 Proven Fixes (2026)

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iPhone Face ID not working is one of the most frustrating issues an iPhone user can encounter. When iPhone Face ID not working occurs, the device may fail to recognize your face, repeatedly ask for your passcode, or show error messages like “Face ID is not available” or “Face ID has been disabled.” According to Apple’s official support documentation, Face ID may stop working due to obstructions, improper positioning, software glitches, or hardware issues[reference:0]. This guide covers every possible cause and provides clear, step-by-step fixes to resolve iPhone Face ID not working on iPhone 16, 15, 14, 13, 12, 11, X, XR, XS, and SE (3rd generation) models.

For more iPhone troubleshooting guides, visit our iPhone & iOS Troubleshooting Hub. You can also check our guide on touch screen issues, our guide on black screen problems, and our guide on Apple logo boot loops for additional help. If you are experiencing other camera-related issues, you may also find our guide on camera black screen, our guide on battery drain, and our guide on Wi-Fi issues useful.

For additional assistance, refer to Apple’s official support page and check the server status at DownDetector.

Featured Snippet: To resolve iPhone Face ID not working, start by checking your Face ID settings (Settings > Face ID & Passcode). Ensure nothing is covering the TrueDepth camera, and make sure your face is fully visible with eyes, nose, and mouth unobstructed[reference:1]. If that does not work, restart your iPhone, set up an Alternate Appearance (Settings > Face ID & Passcode > Set Up an Alternate Appearance)[reference:2], or reset Face ID and set it up again[reference:3]. For persistent issues, update iOS or check for an Unknown Part notification[reference:4].

Why iPhone Face ID Not Working Occurs

Several factors can prevent Face ID from functioning properly. According to Apple’s troubleshooting guides, the issue is often related to obstructions, positioning, software glitches, or hardware problems.

Here are the most common reasons why iPhone Face ID not working happens:

  • Obstructions Covering the TrueDepth Camera: Dirt, smudges, cases, or screen protectors can cover the TrueDepth camera and prevent Face ID from scanning your face[reference:5][reference:6].
  • Face Not Fully Visible: By default, Face ID does not work if anything is covering your mouth and nose. Masks, scarves, or other obstructions can cause iPhone Face ID not working[reference:7].
  • Improper Positioning: Face ID requires you to hold your iPhone at a natural distance (10-20 inches from your face) and look directly at the TrueDepth camera[reference:8].
  • Software Glitches: iOS updates can sometimes introduce bugs that affect Face ID. Apple fixed an unresponsive Face ID bug in iOS 18.3, but some users still experience issues[reference:9].
  • Changes in Appearance: Significant changes in hairstyle, facial hair, glasses, or makeup can confuse Face ID[reference:10].
  • Non-Genuine Parts: If your iPhone has been repaired with non-genuine components, Face ID may stop functioning, and you may see an “Unknown Part” notification[reference:11].

💡 Quick Tip: Start by checking for obstructions and ensuring your face is fully visible—this resolves iPhone Face ID not working for many users.

Method 1: Check Face ID Settings

One of the first steps to resolve iPhone Face ID not working is to verify that Face ID is correctly configured in Settings[reference:12].

  1. Open the Settings app on your iPhone.
  2. Tap Face ID & Passcode and enter your passcode[reference:13].
  3. Ensure Face ID has been set up. If not, tap Set Up Face ID and follow the on-screen instructions.
  4. Under the “Use Face ID For” section, make sure the toggles are on for the features you want to use: iPhone Unlock, iTunes & App Store, Wallet & Apple Pay, Password AutoFill, and Other Apps[reference:14].
  5. Tap Other Apps and ensure Face ID is enabled for all the apps you want to use it with[reference:15].

✅ Expected Result: Verifying and correcting Face ID settings resolves iPhone Face ID not working caused by misconfigured preferences.

Method 2: Ensure Nothing Is Covering the TrueDepth Camera

Dirt, smudges, cases, or screen protectors can cover the TrueDepth camera and cause iPhone Face ID not working[reference:16].

  1. Inspect the top of your iPhone for any dirt, smudges, or debris.
  2. Use a soft, lint-free microfiber cloth to gently wipe the TrueDepth camera area at the top of the screen[reference:17].
  3. If needed, slightly dampen the cloth with distilled water or diluted alcohol (do not spray liquid directly on the phone).
  4. Remove any screen protector or case that might be covering the TrueDepth camera.
  5. If you see a warning at the top of the screen that says “Camera covered” with an arrow pointing to the TrueDepth camera, remove the obstruction[reference:18].

✅ Expected Result: Cleaning the TrueDepth camera and removing obstructions resolves iPhone Face ID not working caused by physical blockage.

Method 3: Make Sure Your Face Is Not Obstructed

By default, Face ID does not work if anything is covering your mouth and nose[reference:19]. If iPhone Face ID not working, ensure your face is fully visible.

  1. Make sure your eyes, nose, and mouth are fully visible to the TrueDepth camera[reference:20].
  2. If you are wearing a face mask, ensure you have set up “Face ID with a Mask” in Settings > Face ID & Passcode[reference:21].
  3. If using a mask, make sure your eyes are not blocked and position your iPhone slightly higher than usual[reference:22].
  4. If you wear sunglasses, try removing them. Some sunglasses block infrared light used by Face ID[reference:23].
  5. If you wear a scarf, hat, or other accessories that cover part of your face, remove them temporarily.

✅ Expected Result: Ensuring your face is unobstructed resolves iPhone Face ID not working caused by facial coverage.

Method 4: Position Your iPhone Correctly

Face ID requires you to hold your iPhone at a natural distance and look directly at the TrueDepth camera[reference:24]. Improper positioning can cause iPhone Face ID not working.

  1. Hold your iPhone at a natural distance from your face, about 10-20 inches (25-50 cm) away[reference:25].
  2. Look directly at the TrueDepth camera at the top of the screen.
  3. Face ID works in portrait and landscape orientations on iPhone 13 and later with iOS 16 or later[reference:26]. For older models, Face ID only works in portrait orientation[reference:27].
  4. If your iPhone is on a flat surface, ensure it is not angled too far away from your face.
  5. If you are holding your iPhone, make sure your fingers or hand are not covering the TrueDepth camera[reference:28].

✅ Expected Result: Correctly positioning your iPhone resolves iPhone Face ID not working caused by distance or angle issues.

Method 5: Restart or Force Restart Your iPhone

A restart or force restart can clear temporary software glitches that cause iPhone Face ID not working[reference:29][reference:30].

To restart your iPhone:

  1. Press and hold the Side button and either Volume button until the slider appears.
  2. Drag the slider to turn off your iPhone.
  3. Wait a few seconds, then press and hold the Side button until the Apple logo appears.

To force restart your iPhone (iPhone 8 and later):

  1. Press and quickly release the Volume Up button.
  2. Press and quickly release the Volume Down button.
  3. Press and hold the Side button until the Apple logo appears[reference:31].

✅ Expected Result: Restarting or force restarting often resolves iPhone Face ID not working caused by temporary software glitches.

Method 6: Set Up an Alternate Appearance

If Face ID struggles to recognize you after changes in appearance, setting up an Alternate Appearance can resolve iPhone Face ID not working[reference:32].

  1. Open Settings and tap Face ID & Passcode.
  2. Enter your passcode.
  3. Tap Set Up an Alternate Appearance[reference:33].
  4. Follow the on-screen instructions to scan your face again[reference:34].
  5. When scanning, try to look the way you normally do when Face ID fails—wear your glasses, put on makeup, or hold the phone at the angle that usually gives trouble[reference:35].

✅ Expected Result: Setting up an Alternate Appearance resolves iPhone Face ID not working caused by changes in appearance or angles[reference:36].

Method 7: Reset and Re-setup Face ID

If iPhone Face ID not working persists, resetting Face ID and setting it up again can resolve software corruption[reference:37][reference:38].

  1. Open Settings and tap Face ID & Passcode.
  2. Enter your passcode.
  3. Tap Reset Face ID and confirm[reference:39].
  4. Tap Set Up Face ID and follow the on-screen instructions[reference:40].
  5. During setup, move your head in a circle to complete the scan.

✅ Expected Result: Resetting and re-setting up Face ID often resolves iPhone Face ID not working caused by corrupted facial data[reference:41].

Method 8: Update iOS to the Latest Version

Outdated iOS versions can contain bugs that cause iPhone Face ID not working. Apple frequently releases updates to fix known issues[reference:42].

  1. Go to Settings > General > Software Update[reference:43].
  2. If an update is available, tap Download and Install.
  3. Enter your passcode if prompted.
  4. Wait for the update to complete and restart your iPhone.
  5. If Face ID is completely unresponsive, connect your iPhone to a computer and update via Finder (macOS) or iTunes (Windows).

✅ Expected Result: Updating to the latest iOS version resolves iPhone Face ID not working caused by known software bugs[reference:44].

Method 9: Check for Unknown Part Notification

If your iPhone has been repaired with non-genuine parts, Face ID may stop working. Check for an “Unknown Part” notification[reference:45].

  1. Open Settings and tap General.
  2. Tap About.
  3. Tap Parts and Service History[reference:46].
  4. Look for an Unknown Part notification next to the camera or display[reference:47].
  5. If you see an alert, tap on it to view additional details[reference:48].
  6. If you have received this alert, contact Apple Support and schedule a visit to an authorized service provider[reference:49].

✅ Expected Result: Identifying an Unknown Part notification helps you understand if iPhone Face ID not working is due to non-genuine repairs that require professional service.

Conclusion: Resolving This Face ID Issue

When iPhone Face ID not working occurs, start with the simplest fixes: check your Face ID settings, clean the TrueDepth camera, ensure your face is unobstructed, and position your iPhone correctly. Most cases of this error resolve with these steps. If the problem persists, restart or force restart your iPhone, set up an Alternate Appearance, or reset Face ID and set it up again. For more stubborn cases, updating iOS or checking for an Unknown Part notification may help. If you have a non-genuine screen or camera repair, Face ID may not work until the part is replaced by an authorized service provider. By following this guide, you can restore Face ID functionality on your iPhone.

Frequently Asked Questions

Why is my iPhone Face ID not working after an iOS update?

iPhone Face ID not working after an update is often caused by software bugs. Force restart your iPhone (press Volume Up, Volume Down, then hold Side button until Apple logo appears). If that does not work, check for the latest iOS update or reset Face ID[reference:50].

Does Face ID work with sunglasses?

Face ID works with most sunglasses, but some sunglasses that block infrared light may prevent Face ID from working[reference:51]. Try removing your sunglasses to test if iPhone Face ID not working resolves. Face ID with a mask is not designed for sunglasses[reference:52].

Does Face ID work with a mask?

Yes, if you set up “Face ID with a Mask” in Settings > Face ID & Passcode. By default, Face ID does not work if anything covers your mouth and nose[reference:53]. Make sure your eyes are not blocked[reference:54].

How do I reset Face ID on my iPhone?

Go to Settings > Face ID & Passcode, enter your passcode, tap Reset Face ID, then tap Set Up Face ID to set it up again[reference:55].

What does “Face ID is not available” mean?

This error usually means there is a hardware issue with the TrueDepth camera. It can occur after a drop, water exposure, or if a non-genuine part was used for repair. Check for an “Unknown Part” notification in Settings > General > About > Parts and Service History[reference:56].

Can a screen protector cause Face ID not working?

Yes, if the screen protector covers the TrueDepth camera area at the top of the screen[reference:57]. Remove the screen protector temporarily to test if this resolves iPhone Face ID not working.

Will a factory reset fix iPhone Face ID not working?

A factory reset can resolve iPhone Face ID not working if caused by software corruption. However, it erases all data. Try Reset All Settings first (Settings > General > Transfer or Reset iPhone > Reset > Reset All Settings). If that fails, back up your data and perform a factory reset.

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