"Sleep Wake failure in EFI Failure code:: 0x00000000 0x0000001f" Macbook Pro 16-inch 2019

info:

processor: 2.4 GHz 8-Core Intel Core i9

memory: 32 GB 2667 MHz DDR4

graphics: Intel UHD Graphics 630 1536 MB

I previously had this problem with Catalina. After I updated to Big Sur the problems stopped. I recently updated to Big Sur 11.5.1 from 11.4 on 7/29/21. Since then every time my mac has powered off/on I have received this failure. Is anyone else having this problem or know a way to fix it or even know why it's happening?

MacBook Pro 16″, macOS 11.5

Posted on Aug 8, 2021 10:19 AM

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Temrhythm

Level 1

14 points

Posted on Aug 11, 2021 12:02 AM

Problem solved. Maybe I haven't done SMC and NVRAM resetting correctly before. I did it again and it's solved my problem with "Sleep Wake failure in EFI Failure"

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3 replies

Top-ranking reply

Temrhythm

Level 1

14 points

Aug 11, 2021 12:02 AM in response to Temrhythm

Problem solved. Maybe I haven't done SMC and NVRAM resetting correctly before. I did it again and it's solved my problem with "Sleep Wake failure in EFI Failure"

Aug 10, 2021 11:00 PM in response to Sharon_419

Have the same issue with almost the MacBook with the same configuration after updating to 11.5.1. Resetting nvram and smc didn’t help…

Sharon_419

Community Specialist

Aug 9, 2021 8:32 AM in response to alyssaialyssa

Hey there alyssaialyssa,

Thank you for using the Apple Support Communities! We understand your Mac is experiencing a failure related to Sleep and Wake cycles. We'd like to help.

This article may share some helpful guidance to begin troubleshooting sleep and wake issues: If your Mac won’t go to or stay in sleep

We'd suggest restarting your Mac: Log out, sleep, wake, restart, or shut down your Mac, and resetting the SMC and NVRAM next: How to reset the SMC of your Mac and Reset NVRAM or PRAM on your Mac.

Keep us posted if you need more support.

Best regards.

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"Sleep Wake failure in EFI Failure code:: 0x00000000 0x0000001f" Macbook Pro 16-inch 2019