How to fix if Trackpad not working correctly after Mojave upgrade

How to fix if Trackpad not working correctly after Mojave upgrade
0

My case was that the Secondary Tap not working after upgrading to the new MacOS Mojave 10.14 even all is set correctly from the setting . How to fix?

Normally, just Reset the PRAM, and the issue gone.
How to reset the PRAM or NVRAM on Mac?

  • Turn off your Mac.
  • Press the power button to open it again
  • Quickly press the Command , Option , P , and R keys at the same time Before the grey screen appears.
  • Make sure you keep holding the keys until you hear the startup sound twice.
    Notification: At for Macs with the T2 Security Chip, hold the keys until the Apple logo appears and disappears for the second time.
  • Release the keys.
    Trackpad then must work correctly.