Written by: Kyle Domion
Face ID has become one of the most secure and convenient ways to unlock your iPhone, authorize app purchases, and use Apple Pay. But what happens when it suddenly stops working? Whether your iPhone won’t recognize your face, gives repeated “Face ID not available” errors, or fails to set up altogether, the issue can be frustrating.
In this blog, we’ll walk you through a complete guide to fixing Face ID problems. You’ll learn why Face ID might fail, the exact steps to troubleshoot it, and when it’s time to seek professional repair at Mobile Fix Experts.
Understanding Face ID Technology
How Face ID Works
- Uses the TrueDepth camera system with infrared sensors and a dot projector.
- Captures over 30,000 invisible points to map your face.
- Machine learning adapts to changes in appearance (glasses, beard, makeup, etc.).
Why Face ID Might Fail
- Hardware obstruction (dust, dirt, cracked screen).
- Camera/sensor misalignment after drops.
- Software glitches after updates.
- Damage from liquid exposure.
- Improper settings or restricted permissions.
Common Causes of Face ID Issues
2.1 Software-Related Causes
- Outdated iOS version.
- Temporary bugs after updates.
- Settings misconfigurations.
2.2 Hardware-Related Causes
- Cracked screen blocking sensors.
- Camera module damage after a drop.
- TrueDepth system damage from water exposure.
2.3 Environmental Causes
- Very bright sunlight or pitch-dark conditions.
- Screen protectors or cases blocking sensors.
- Face angle or distance incorrect.
Step-by-Step Fixes for Face ID
Step 1: Clean the TrueDepth Camera
- Use a microfiber cloth to wipe the top of the iPhone.
- Remove dust, oil, or fingerprints.
Step 2: Check Lighting & Position
- Hold phone 10–20 inches from your face.
- Ensure good lighting.
Step 3: Restart Your iPhone
- Clears temporary system glitches.
Step 4: Check Face ID Settings
Go to:
- Settings → Face ID & Passcode → Ensure “iPhone Unlock,” “iTunes & App Store,” “Wallet & Apple Pay” are toggled on.
Step 5: Reset Face ID
- Go to Settings → Face ID & Passcode → Reset Face ID.
- Set up again in a well-lit environment.
Step 6: Update iOS
- Install the latest version of iOS for bug fixes.
Step 7: Reset All Settings
- Settings → General → Transfer or Reset iPhone → Reset → Reset All Settings.
- Doesn’t erase personal data, but resets system settings.
Step 8: Remove Case or Screen Protector
- Some accessories may block Face ID sensors.
Advanced Troubleshooting
TrueDepth Camera Malfunctions
If you see “Face ID not available,” the hardware may need diagnosis.
Water Damage
Moisture inside the sensor array can disable Face ID completely.
Hardware Replacement
At Repair a Device, certified technicians can replace faulty sensors or damaged components.
Prevention Tips
- Avoid exposing your iPhone to water or extreme heat.
- Use high-quality screen protectors that don’t cover sensors.
- Keep the front camera area clean.
- Update iOS regularly.
Section 6: When to Seek Professional Help
If you’ve tried all fixes and Face ID still won’t work:
- The TrueDepth system may need replacement.
- Board-level repair might be necessary.
- Visit Mobile Fix Experts for expert help.
They offer fast, warranty-backed repairs for iPhones with Face ID issues.
FAQs
Q1: Why does my iPhone say “Face ID not available”?
A: This usually points to a hardware issue in the TrueDepth system.
Q2: Can Face ID work if my screen is cracked?
A: If cracks block sensors, Face ID won’t work. Repairing the screen may solve it.
Q3: Does Face ID work in the dark?
A: Yes, Face ID uses infrared, but complete darkness or covered sensors can affect recognition.
Q4: Can I repair Face ID myself?
A: No, Face ID involves secure hardware. Repairs should only be handled by professionals.
Q5: How much does Face ID repair cost?
A: Costs vary by model. Use the Contact Us page for repair quotes.
Final Thoughts
Face ID is one of Apple’s most secure and user-friendly features. While issues with it can be disruptive, most can be solved with simple steps like cleaning, resetting, or updating. For persistent issues, professional repair is the safest solution.
Whether you need Face ID repairs, or want to explore options to Buy a Device or Sell a Device, Mobile Fix Experts is your trusted repair partner.