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How to reset Open Firmware Password?

I forget my Firmeware password, how to I reset him?

I need reset my nvram!

eMac G4/1.25 (USB 2.0)-OTHER, Mac OS X (10.4.11), M9461LL/A

Posted on Dec 3, 2011 4:29 AM

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8 replies

Dec 3, 2011 1:56 PM in response to applein

Ah, that'll reset the Login Password, but will not even boot from any other souce like a DVD if Firmware Password Protection is set...


Firmware password protection in Mac OS X ...


http://support.apple.com/kb/HT1352


It would block usage of all the startup keys, like C, N, T, D, CMD+s, CMD+Option+p+r, CMD +v, Option, and Shift, as well as booting from anything but the Hard Drive.

How to reset Open Firmware Password?

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