Purpose of Knowledge Article

A guide on how to fix the touch bar on a Mac laptop flashing issue

Resolution

You must determine first if your Mac laptop is an Intel chip, an Apple silicon chip, or has Apple T2 Security Chip as the instruction varies based on the hardware your computer has.

• Determine if your Mac laptop has an Intel chip or an Apple silicon chip - see https://support.apple.com/en-us/HT211814
  MacBook Pro:
  MacBook Pro (13-inch, M1, 2020) and 2021 or later
  MacBook Air:
  MacBook Air (M1, 2020) and 2022 or later

• Determine if your Mac laptop has an Apple T2 Security chip - see https://support.apple.com/en-us/HT208862

Mac with Intel Chip

1. Try resetting the NVRAM first - see instructions on How to Reset NVRAM on your Mac

2. If NVRAM reset did not work, try resetting to SMC

   Intel Chip with Apple T2 Security Chip: See instructions on How to Reset SMC on your Mac, specifically the "If you have a Mac with the T2 chip" section

   Intel Chip without Apple T2 Security Chip See instructions on How to Reset SMC on your Mac, specifically the "If you don't have a Mac with Apple silicon or the T2 chip" section

Mac with Apple silicon chip (M1 and M2)

1. Make sure your Mac laptop power source is connected
2. Restart the computer or shut it down and turn it on again