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Open Firmware? (Powerbook 3400c)

How am I supposed to go into open firmware on a Powerbook 3400c? There seems to be a multitude of combinations of key. Can anyone give me the one?

PowerBook 3400c, Mac OS 9.1.x

Posted on Sep 13, 2006 12:29 PM

Reply
2 replies

Sep 13, 2006 1:53 PM in response to Prosis

Prosis,

There are different versions of Open Firmware but give this combination a try:

Boot into Open Firmware by holding down the 'Command-Option-O-F' keys from a cold start while the chime is being played. You will see a command-line screen...enter these commands:

1. At the Open Firmware prompt, type: reset-nvram
2. Press Return.
3. At the Open Firmware prompt, type: reset-all
4. Press Return.
Example:
0 > reset-nvram
Press Return
0 > reset-all
Press Return

The reset-all command should cause the computer to restart. If this occurs, you have successfully reset the Open Firmware settings.

Open Firmware? (Powerbook 3400c)

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