How can I repair my Touch ID? If you're having trouble accessing your iOS device or Mac with Touch ID, try these troubleshooting tips!
Touch ID is Apple's fingerprint identity sensor. It allows you to unlock your device, connect to applications, use Apple Pay and make purchases on the App Store but also on iTunes, just by touching the sensor and briefly holding your finger. above. When it works, it's so magical, you want it everywhere - in your car, your home, your yacht, your personal rocket to Mars. And when that doesn't work, you probably want to throw your iPhone (or Mac) across the bedroom..
What can make Touch ID failures even more frustrating is trying to figure out why it doesn't work. From the outside, it looks like the black box is stereotypical. A fingerprint is put in and then it either works or it doesn't, and if it doesn't, we have no way of knowing what isn't working, why we can't use it, or how to do it. to fix it. It is infuriating.
There are, however, some things you can do to make it work better and more often..
How does Touch ID work?
On an iOS device, there is a capacitive ring around the Touch ID sensor; on the new MacBook Pro, the entire Touch ID sensor is capacitive. When the sensor detects a finger, it triggers a high-resolution image capture. This image is converted into a mathematical representation, which is then sent over the hardware channel to a secure enclave. If the representation matches what is stored in the enclave, a “yes” token is released and the Touch ID action is authenticated. Otherwise a 'no' token would be released, all you get is a digital head shake. Each time Touch ID scans a finger and recognizes it, it adds additional detail to the representation, theoretically to make it register even faster and better in the future.
Troubleshooting Touch ID Authentication
Here are some tips and tricks you can try if you're having trouble with your Touch ID:
- During the registration process, be sure to move your finger enough on the key so that the entire surface is well scanned in the first step, and then each edge is well scanned in the second phase.
- Any sweat or liquid on the finger can interfere with the scan. Wipe down the finger and Home button and dry them completely before using Touch ID.
- The process of sequential improvement can sometimes get out of hand (i.e. instead of improving, a mistake can arise and get worse). When this starts to happen, delete the fingerprint and re-enroll.
- On an iOS device, make sure your finger is touching the capacitive metal ring and the Home button.
- Touch ID is super fast now, but you should still avoid lifting your finger too quickly.
- Try to keep your finger in the same spot when authenticating - don't move your finger too much.
- If you're using a screen protector or case, you don't want it to cover the capacitive ring or the Home button - this could cause errors with Touch ID authentication.
- If all other steps fail, it's time to head to the Apple Store for one-on-one support.
How to remove and re-add your Touch ID fingerprints
Sometimes you just want to burn it down and start over..
How to remove and re-add your Touch ID fingerprints on Mac
Follow these steps to remove your Touch ID fingerprints on Mac:
1. Click the Apple menu icon in the upper left corner of your Mac screen.
2. Select “System Preferences” from the drop-down menu.
3. Select the Touch ID preference pane.
4. Hover over the fingerprint icon you want to remove until you see “X” in the upper left corner, then click it.
5. Enter your password.
6. Press “Delete” to confirm.
Follow these steps to add your Touch ID fingerprints on Mac:
1. Click the Apple menu icon in the upper left corner of your Mac screen.
2. Select “System Preferences” from the drop-down menu.
3. Select the Touch ID preference pane.
4. Click on “Add fingerprint”.
5. Enter your user code.
How to remove and re-add your Touch ID fingerprints on iOS
If you're having trouble with Touch ID on an iOS device, here's how to delete the recording and start over!
1. Launch the “Settings” application.
2. Tap on “Touch ID and Passcode”.
3. Enter your code when prompted.
4. Tap any fingerprint.
5. Then click on "Delete fingerprint". Repeat this until all of your fingerprints are removed.
6. Then select the option "Add a fingerprint" ...
7. Follow the on-screen instructions to set up a new fingerprint.
Questions ?
Can't you resolve your Touch ID issues? Do you have any other outstanding questions? Leave us a message in the comments below.