User level: Level 1 (4 points)After updating to MACos27, my fingerprint sign-in on my air and 14" pro (both M1) does not work sometimes or is very delayed?
Posted on Oct 1, 2026 3:58 PM
User level: Level 10 (123,805 points)Oct 2, 2026 1:27 AM in response to BHJason
Given the limited technical details and not knowing what you may have already tried, it would help to clarify a few things before repeating any troubleshooting steps.
How many times has each Mac been restarted since upgrading to macOS 27?
When the problem occurs, does Touch ID eventually recognise your fingerprint after a delay, fail to respond, or require your password?
Does it happen the same way on both the M1 MacBook Air and 14-inch MacBook Pro?
Does the delay occur specifically when signing in after starting or waking the Mac, or does it also happen when using Touch ID for other authentication?
Approximately how long is the delay?
Finally, does the same behaviour occur when either Mac is started in Safe Mode?
Once those details are clear, make sure both Macs are running the latest available macOS 27 update.
The latest version of macOS is 27.0.1. Learn how to update the software on your Mac and how to allow important background updates.
Apple also recommends making sure the Touch ID sensor and finger are clean and dry, restarting the Mac, and, if necessary, removing and re-adding the fingerprint. Apple — If Touch ID isn't working on Mac
Safe Mode can help determine whether a problem is related to software that loads during startup, although Apple does not specifically identify Safe Mode as a Touch ID diagnostic.
It is also worth distinguishing a genuine Touch ID delay from situations where macOS intentionally requires the password, such as after a restart, after more than 48 hours without unlocking, or after five unsuccessful fingerprint attempts. Apple — If Touch ID isn't working on Mac
Originally posted at discussions.apple.com/thread/256368764