Question about Apple PowerBook G4 Mac Notebook

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Start up I tried to update my G4 Laptop software by going online to Apple. Now my computer will not get past the opening white screen with the Apple in the middle. It has the rotating load symbol in the lower-middle of the screen, but that's all. Any tricks I can use to access the harddrive? -Don

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Re: Start up

Try rebooting into safe mode, then emptying your trash and restarting to normal operation. In safe mode, all internet is dissabled, so dont go trying to fire up the bluetooth or wi fi. The systme trashes unneccessary fonts and cache that can complicate the boot up.

If that does not remedy, try getting anothe rmacintosh running 10.3 or higher and a firewire cable. Boot your powerbook into TARGET DISK MODE and from the other mac go to UTILITIES and run permissions on your powerbook ( it should be on the left pane in DISK UTILITIES )

These are a few quick fixes, if they dont remedy the situation, keep me posted and try providing more info, like which version of osx, what you were downloading, and what apps were open when it was last functional.

Keep me posted.

Posted on Nov 19, 2007

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Frequent curtain of doom stops my PowerBook G4

You need to reset the firmware...
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2) type reset-all followed by the return key
If that doesn't solve the problem, check this out..
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I think you are experienceing the same problem I had with my Powerbook G4. I would get the single beep, followed by the pulsing white light (2 flashes). The single beep indicates no memory is detected by the machine and the double flash with the white light is related. Apple eventually replaced my memory banks even though I was past the 1 year warranty period because it was a "known" problem with some of the G4s.

As a short term solution, you may want to try swapping your installed memory to the unused slot.

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Restart... did it get you up to your desktop?

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1 Answer

When I start up my G4 I doesn't get past the white logo screen with the circular icon spinning. Have removed battery and depressed start up button until a loud beep occurs but still nothing

I had a problem with my hard discs. That's where I got, but my screen froze after a few minutes. try pressing apple + s after the chime. See if you can search around there. Also, try holding the shift key when you hear the chime, or when booting if you don't normally hear the chime, and hold it 'till you see the apple logo.

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1 Answer

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Do you have any external drives hooked up to your Mac?
If so, try powering up without the drive plugged in.

Try running the diagnostic test per this Apple link:

Click on this link or copy and paste the complete link into your browser.
If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Thanks, Joe

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1 Answer

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Hi stuart,
It sounds like you either may have a corrupt system or a faulty hard drive. Try reinstalling OSX with the system discs that came with the computer. You can still keep everything if choose the "Archive and install" option.
If this doesn't help, then I'd say the hard drive may have seen its last days.


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1 Answer

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Do you have any external harddrive attached to it? If so, remove it before restarting. Try to start it up in safe mode by holding the Shift button down at startup:

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It could well be the ribbon cable between the screen and motherboard is knackered. Depends how brave you are at dismanteling computers, if you search on powerbook parts you may be able to find a company that scraps computers who could sell you the cable if it is a separate item otherwise it will be an expensive Apple repair!


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