Touch ID broken after upgrade to Sequoia 15.3 / MacBook Air 13 M3

Hi -


Since I upgraded my MacBook Air M3 to Sequoia 15.3, the Touch ID doesn't work - I tried deleting the old fingerprint and restarting the machine; nothing seems to address the issue.


Please advise.


Yours sincerely,


Dr. Christian DeFeo

MacBook Air 13″, macOS 15.3

Posted on Jan 29, 2025 7:16 AM

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Posted on Mar 16, 2025 9:31 AM

MacPro M1 - upgraded yesterday to Sequoia 15.3.2 - thought I had the same problem.


After much experimenting turns out Touch ID is very sensitive to electrical noise. I'd plugged my USB C power cable into a power supply that was not the one supplied with the Mac. Its for charging a powerbank.


I'd noticed my mouse jittering. Suspected electrical interference. Inspected the power and realised it wasn't plugged into the Apple one.


Switched to Apple supply and Touch ID sprang back into life.


This after I'd deleted and attempted to redo Touch ID fingerprints. Adding new ones, they would most remain blank with occasional lines appearing.


Clean power resolved a couple of hours of frustration.


Cautionary tale though. I've not seen this mentioned in the dozens of articles I've trawled through today, looking for clues.

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Touch ID broken after upgrade to Sequoia 15.3 / MacBook Air 13 M3

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