Hi, folks!
Excuse my bad english. A friends old Powerbook G4 15` (last gen. before Intel-Hardware) has got a problem.
From one day to the other, it will not boot-up normally. It boots in a kind of "Bios", white letters on a
black screen, running in lines. Nothing more happens. It seems to hang in this "Bios"-like state.
Can you please help?
PowerBook, Mac OS X (10.4), Titanium, 1,67 ghz
Hello
Try resetting the PMU by following these instructions;
http://support.apple.com/kb/HT1431?viewlocale=en_US
If that don't work then try resetting the PRAM and NVRAM
http://support.apple.com/kb/HT1379?viewlocale=en_US
Now from past experience, has your friend replaced or added more memory recently to this PowerBook? That can sometime caruse the PowerBook to boot into the firmware.
What you are seeing is a Unix dumb terminal with the machine probably coming up in single-user mode. Doing the recommended PRAM reset should clear it up, and if it doesn't, then the NVRAM reset should do the trick. Single-user mode is useful for some things when you really have to get to the guts of things and use Unix terminal commands; it is a mode to be avoided unless absolutely necessary.
Okay, fine. Something changed by now. At boot-up it shows blue Destktop with spinning wheel and Message about battery status. From there no more progress.Any hints? It is connected with normal power supply.
Thx. plese read my reply above. Something changed. It starts into a blue sccreen with spinning ball and message of battery status. I put on the power supply though. So why Battery message?
Hello,
What battery message is being displayed?
Wow, fast reply! I will try to upload a picture. Now thats the situation:
I worked out to reach the screen for firmware commands. You can see from the system-clock status, that Battery is empty since long time.
Otherwise, if i just press power button, I see normal bootup screen with spinning wheel for at least 45 seconds-after that, the Macbook turns down on its own.
No battery message- it was a bad description by me. See my reply. Thx in advance.
Hello,
Feel free to post any replies in German if you find it easier.
So I undersatnd better, when you now power on the PowerBook, it boots but powers down after 45 seconds?
Ja genau.
Ich stelle in einer 1h Fotos ein.
Für mich das würde auf ein Problem mit der Hardware. Meine ersten Gedanken würde der Speicher sein
normal boot up-spinning wheel for 45 sec.- Lüfter heulen kurz auf- then it shuts down
After booting in open firmware. no reaction on in input
Here is an article worth trying;
http://support.apple.com/kb/TS1812?viewlocale=en_US&locale=en_US
Aber ich würde versuchen, und entfernen Sie eines der Speichermodule und versuchen Sie es und starten, wenn das nicht funktionieren, dann versuchen Sie das andere Speichermodul (Wie Sie 2 haben), die jeweils ein in sich selbst, indem es. Schauen Sie, ob das einen Unterschied macht.
Hier ist ein Link, Ihnen zu helfen
http://www.ifixit.com/Guide/Installing-PowerBook-G4-Aluminum-15-Inch-1-67-GHz-RA M/626/1
power book G4 Titanium/Aluminium bootscreen looks like bios
