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I still remember how annoyed I was while dealing with the novice Touch ID on my iPhone 5s. But with time, the fingerprint scanning technology has vastly improved so much so that it's widely considered to be a gold standard in the industry. However, nothing is absolutely flawless in the world, and hence you shouldn't be surprised at all when Touch ID stops working on your iPhone 8/8 Plus.

Having encountered the Touch ID issue on my previous iPhones, I know how to deal with the occasional hiccups. In most cases, the problem is resolved just by setting your fingerprint up from scratch. But in some cases, you might have burned out everything to troubleshoot the issue.

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Touch ID Not Working on iPhone 8 Plus

Touch ID Not Working on iPhone 8 or iPhone 8 Plus: Tips to Fix the Issue

Slightly Move Your Finger Around

While registering your finger, make sure to slightly move your finger around so that the entire surface is scanned during the first stage. Likewise, ensure that every edge of your finger is scanned during the second phase.

Keep Your Finger Clean

You need to ensure your finger is clean as any sweat or liquid on your finger can hamper the scanning process. Clean both your finger and the Home button and dry them.

Ensure the Screen Guard or Case hasn't Covered the Touch ID Button

Make sure the screen protector or case hasn't covered up the capacitive ring or the Home button. If they have covered the Home button, you will face errors with Touch ID authentication.

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  • At times, the sequential improvement process doesn't seem to function properly, and error can occur. In such a case, you need to delete the fingerprint and re-register your finger.
  • Ensure that your finger is touching the capacitive metal ring and the Home button. Don't lift your finger too quickly.
  • Avoid moving your finger too much between scans.
  • You must keep your finger in one place while authenticating it. Don't move your finger around too much as it will not allow you to scan it properly.

Delete And Re-Add Your Touch ID Fingerprints on iPhone

Step #1. Launch Settings app on your iPhone.

Step #2. Now, scroll down and tap on Touch ID & Passcode.

Tap on Settings then Touch ID and Passcode in iPhone 8-8 Plus Settings

Step #3. Next, you need to type in your Passcode → Tap the fingerprint under Fingerprints section → Next up, tap on Delete Fingerprint.

Delete Fingerprint from iPhone 8-8 Plus

Follow these same steps to remove all the registered fingerprints.

Step #4. Once you have deleted all the fingerprints, hard reset your device.

To do so, press and release volume down button, press and release volume up button. Then press and hold the side button until you see Apple logo on the screen.

Hard Reboot iPhone 8 Plus or 8

Step #5. Once your device has restarted, return to Touch ID & Passcode section and tap on Add a Fingerprint…

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Step #6. Up next, set up a new fingerprint. Make sure to follow the on-screen instructions to register the finger.

Reset All Settings

Sometimes when nothing seems to be working, it’s worth trying out all the tricks. And one of the most reliable solutions that have helped me in fixing many miscellaneous issues is resetting the settings to factory default.

Yes, it's a pain in the back, and not many folks would want to go through it. But if the tough decision gets your job done, there is no harm in going for some extra yards.

Step #1. Open Settings app → General → Reset.

Step #2. Tap on Reset All Settings and confirm.

Reset All Settings on iPhone Running iOS 11

Update Your iPhone

Haven't been able to overcome the issue? The old version of iOS might be creating the problem. Update your iPhone to the latest iOS version. Make sure your device is at least 50% charged and connected to Wi-Fi. Then open Settings app and tap on General → tap on Software Update → If there is an update available, tap on Download and Install.

Update iOS 11.2 on iPhone

Restore Your iPhone

Still struggling to overcome the issue? Let's take a radical step to get rid of it. Restore your device and set it up as new.

I know it's lengthy and also requires a lot of patience but it's worth trying out this trick as it's known to crack even tough nuts. Don’t forget to back up your device before going for the restore.

Step #1. Connect your iOS device to the computer.

Note: Make sure Find My iPhone needs is turned off. Else, you won't be able to restore your device. Go to Settings App → Tap on Apple ID banner → iCloud → Find My iPhone.

Step #2. Launch iTunes and select your device.

Step #3. Now, click on Back Up Now.

Step #4. After your device has been perfectly backed up, click on Restore iPhone button.

Restore iPhone 8-8 Plus using iTunes

Once the process is completed, and you have set up your device. Try using Touch ID. It should start working.

That's all!

Wrap up:

Which one of the solutions mentioned above got your work done? Let us know that in the comments below.

Take a peek at these posts as well:

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Jignesh Padhiyar is the founder of iGeeksBlog.com who has a keen eye for news, rumors and all the unusual stuff that happens around iPhone and iPad.