You need a dry, clean finger to use Touch ID.
If that’s not the issue, restart the rig.
Ensure that the fingerprint reader, and your finger, is dry and clean.
Use a lint-free cloth to clear away anything interrupting the fingerprint reader.
Remove your case or screen protector.
Hard reboot your gadget.
The Touch ID problem could be temporary and solved with a good reboot.
Go toSettings>Touch ID & Passcodeand disable all options.
Then, restartyour iPhoneoryour iPadand re-initiate the features you want to be turned on.
Delete your existing fingerprint, and then power cycle your machine.
When the gear turns on again, enroll a new finger.
The initial Touch ID setup might not have been completed successfully.
There might be a bug or other problem with Touch ID that Apple has already resolved through an update.
Reset your devices connection prefs.
Some users have had luck resetting just the internet prefs to fix Touch ID not working.
Reset your deviceto completely erase all the software and start from scratch.
check that youve tried all of the above before completing a reset.
All of your apps, photos, videos, etc., will get deleted during this full reset.
Contact Appleabout a possible repair for a malfunctioning Touch ID sensor.
Check for damages if you recently serviced the unit yourself.
“error, or Touch ID is greyed out, then you’ll have to try some other options.
Turn off your passcode viaTurn Passcode Offin the configs’Touch ID & Passcodearea.
Sign out of your Apple ID/Apple Account and then log back in.
In some versions of macOS, iOS, and iPadOS, this option is called “Apple ID.”
Whether you have Touch ID set up or not, a restart can resolve minor glitches.
upgrade your machine’s software.
Your trouble in initializing Touch ID may be a known issue.
The most recent version of iOS, iPadOS, or macOS can clear it up.
Reset your online grid configs.
You’ll find these underGeneralin theSettingsapp, either under aResetheading orTransfer or Reset iPhone/iPad.
Contact Appleto learn about your repair options.
You might have a defective or broken Touch ID sensor.
Causes Of My Touch ID Not Working?
Setting up Touch ID on a MacBook Air is the same as setting upTouch ID on an iMac.
To configure Touch ID, go to theApple menu>System Preferencesand selectTouch ID.
SelectAdd Fingerprint, then place your fingertip on the Touch ID key on the keyboard and follow the prompts.
