User level: Level 1 (4 points)I have a MacBook Air M2. When the charger is connected, Touch ID does not work. What should I do? I have tried restarting, enabling Lockdown Mode, and re-registering my fingerprint, but nothing has worked.
Posted on Oct 11, 2026 9:19 AM
User level: Level 10 (123,805 points)Oct 11, 2026 1:37 PM in response to Rauf_khan
Since restarting, re-registering your fingerprint and enabling Lockdown Mode have not resolved the problem on your MacBook Air M2 running macOS 27.0, the next step is to determine when Touch ID fails.
Apple's Lockdown Mode guidance explains that it is an optional security feature designed to protect people who may be targeted by highly sophisticated cyberattacks. It does so by restricting certain apps, websites and system features. It is not intended to troubleshoot Touch ID, so enabling it would not be expected to resolve this particular problem.
First, test Touch ID on battery power, with MagSafe 3 connected, and with a USB-C charger connected, if available. This comparison may help establish whether the problem occurs with both charging methods or only one. The physical locations of the MagSafe 3 port and Touch ID button do not, by themselves, explain the problem.
Next, test in Safe Mode using Apple's instructions.
Test Touch ID on battery power and while charging. If it works while charging in Safe Mode but fails during normal startup, software loaded during normal startup may be contributing to the problem. If the problem persists in Safe Mode, the test has not identified the cause; neither result alone proves a software or hardware fault. You may need to enter your password after starting your Mac before Touch ID becomes available.
Also distinguish between two symptoms: failure to recognize your fingerprint means the sensor responds but does not authenticate your fingerprint; no response from the sensor means placing your finger on the Touch ID button produces no apparent response.
For further troubleshooting, see Apple's Touch ID guidance. If the problem persists after these tests, contact Apple Support for further diagnosis.
Have the computer evaluated by the Professionals who have the Special Hardware Software and Expertise to diagnose the issue and offer possible solutions
Make an Appointment at the Apple Genius Bar or call 1 800 MyApple and have them evaluate the computer
Other location Call Centres
Originally posted at discussions.apple.com/thread/256374266