I have a MacBook Pro 16-inch 2019 running macOS Catalina version 10.15.7. Touch ID, which initially was working fine, stopped functioning. All 4 items in System Preference under "Use Touch ID for:" are checked. Please help. hiro42
MacBook Pro 16″, macOS 10.15
Hi, Leroy,
Thank you for your prompt and detailed reply.
As I was about to get started with going down your list of things to attempt, miraculously the TouchID started working. Evidently lightly "touching" won't work, but lightly "tapping" does. Or, you fixed my problem with telepathy or something. But I will keep your list handy when the problem recurs.
Thank you again,
Hiro
hiro42 wrote:
I have a MacBook Pro 16-inch 2019 running macOS Catalina version 10.15.7. Touch ID, which initially was working fine, stopped functioning. All 4 items in System Preference under "Use Touch ID for:" are checked. Please help. hiro42
Try resetting the SMC https://support.apple.com/en-us/HT201295
If no resolve Even though SMC controls the touchbar, some USB is in play, so this would be NVRAM (or reboot.) notice:
USB Device: Apple T2 Bus
USB Device: Touch Bar Backlight
USB Device: Touch Bar Display
USB Device: Apple T2 Controller
Therefore try resetting NVRAM/PRAM http://support.apple.com/kb/ht1379
You can always try deleting all finger prints and add them back in.
Use Touch ID on your Mac - Apple Support
If the problem persist, typically it is a hardware issue—
Call Customer Support (800) MY–APPLE (800–692–7753)
or on line https://getsupport.apple.com/
or call AppleCare Support at 1-800-APLCARE (800-275-2273)
Touch ID not working
