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How to Disable Auto Boot

  1. How to Disable Auto Boot, How to Disable Auto Boot: step 1, image 1 of 3 How to Disable Auto Boot, How to Disable Auto Boot: step 1, image 2 of 3 How to Disable Auto Boot, How to Disable Auto Boot: step 1, image 3 of 3
    • Power on your Mac and launch Terminal.

    • To launch Terminal, you can either use Spotlight Search or navigate to Applications / Utilities in Finder and double click the Terminal icon.

  2. How to Disable Auto Boot: step 2, image 1 of 2 How to Disable Auto Boot: step 2, image 2 of 2
    • Copy and paste the following command (or type it exactly) into Terminal:

    • sudo nvram AutoBoot=%00

    • Press [return].

    • Your [return] key may also be labeled ⏎ or [enter].

    • If you are prompted for an administrative password, type the password and press [return].

    • Your password will not be displayed in Terminal.

  3. How to Disable Auto Boot: step 3, image 1 of 1
    • You can now safely power down your Mac and remove the bottom case, without it accidentally powering on.

    • Remember, you must still disconnect the battery before servicing internal components.

  4. How to Disable Auto Boot: step 4, image 1 of 3 How to Disable Auto Boot: step 4, image 2 of 3 How to Disable Auto Boot: step 4, image 3 of 3
    • When your repair is complete and your Mac is successfully reassembled, you can re-enable the Auto Boot feature.

    • Power on your Mac and launch Terminal.

    • Copy and paste the following command (or type it exactly) into Terminal:

    • sudo nvram AutoBoot=%03

    • Press [return].

    • If you are prompted for an administrative password, type the password and press [return].

    • Your password will not be displayed in Terminal.

    • Alternatively, you may reset your Mac's NVRAM to re-enable Auto Boot.

Conclusion

Congrats! You're done.

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Jeff Suovanen

Member since: 08/06/13

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16 Comments

hello may i ask, how do u make it Jeff$? mine’s scarlet$ and i want to change it but idk how

srhshahdzan - Reply

I can’t type anything into the terminal…what am I doing wrong?

Linda Sussman - Reply

HELP

it doesn’t work on MacBook Air><

my sister’s pro did work, thanks!! but mine can’t do so. what should I do???

Ching-Hsien Chou - Reply

This code change DOES NOT work.

MFMauceri - Reply

This was a great help to replace my MacBook Pro battery. Great step by step explanations. I received kit and followed the directions.

Simon Tezzo - Reply

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