Question about Apple PowerBook G4 Mac Notebook
You have a firmware problem and it needs to be reset.
try this first: If the computer is on, turn it off. Reset the power manager by simultaneously pressing and then releasing Shift-Control-Option-Power on the keyboard. Do not press the fn (Function) key while using this combination of keystrokes.
Wait 5 seconds.
Press the Power button to restart the iBook computer.
If that doesn't work, try this: Turn the laptop off. Remove the battery but leave the mains power attached. Hold the start button down until you hear a loud beeeeep! then release. Wait for the system to reboot and hopefully thats you sorted.
Posted on Sep 01, 2010
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Posted on Jan 02, 2017
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