Powerbook G4 (12" aluminum" won't start up (freezes with apple screen up)

I'm on the road, and my Powerbook freezes during startup, with the apple on the white background, but no pinwheel. Tried starting in "Safe Mode", and it got to the pinwheel, then process bar/startup, but froze afterwards before the desktop came up. There's a blank blue screen, and occasional flashes of a pinwheel, but no desktop or mouse arrow. Any suggestions that can be done while traveling and without the startup disks (which were stupidly left at home)? Running OSX Tiger.

Find a local Apple Authorized Service Center who can help you out, tell them first before they do anything whether your data is backed up, and they'll take whatever measures you need:
http://www.apple.com/buy/

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Please help! 2.7 Power Mac froze, won't start up past white apple screen!

Hello!
I own a Dual processor 2.7 power mac G5. I only had safari and itunes running when everything came to a freeze without any kind of crash message. Upon force-shutting down the computer, the white screen with the gray apple came up, but would not move past this point! I also did not notice any sounds coming from my machine! I force-shutdown and started it up again and the same occurred. I left the room to jump on this computer (my old, trusty G3 iMac) to try and research while I let it try to start up. When I entered back into the room, I heard the fans going a pretty full-blaze with the white screen w/ apple still starring at me. So I shut it down and came here to post. If it is major issue, at this point, I just want all of my data to be safe. Can someone help me? Any ideas or suggestions? I am not thinking too clearly.

Hi-
Don't give up yet.
There are a few things to try before hauling the machine in for diagnosis.
What I think you should do now, is to follow all the steps (in order) as listed/described in this article:
http://support.apple.com/kb/TS2570
Even if you have tried before, please follow the order of troubleshooting.
Each step helps to isolate the problem.
Removing all but keyboard, mouse, and monitor is important.
Try the Safe Mode boot, followed by resetting the PRAM.
In lieu of repairing with Disk Utility, try and start to your DiskWarrior disk.
Remember, booting to Disk warrior can take several minutes, so be patient.
In the "Remove third-party RAM and internal hardware" step, try removing and reseating the RAM, and graphics card, attempting to boot after RAM, and again after graphics card.
Instructions for removal and replacement are here:
http://support.apple.com/kb/TA22565
Also, it wouldn't hurt to try booting the G5 to firewire target disk mode.
but I wonder what my G5 (the fans, in particular) would make of that interaction. hmm . . .
The fans are just noisy. They will insure that overheat damage doesn't occur.
If the firewire boot is successful, it may be wise to copy your files so that you can try a reinstall of the OS, should that be necessary.
Also, again worst case, check for coolant leakage:
http://www.fusina.net/G5coolantleaks/gallery.php
http://www.xlr8yourmac.com/systems/G5coolantleaks.html

I've updated to yosemite from Mavericks, but since i can't connect to the internet I used my time machine back up which was march 2013. Now my macbook pro won't start and ends with a prohibited ted sign. Any suggestions pls.

I've updated to yosemite from Mavericks, but since i can't connect to the internet I used my time machine back up which was march 2013. Now my macbook pro won't start and ends with a prohibted sign. Any suggestions pls.

Install or Reinstall Yosemite, Mavericks, Mountain Lion, or Lion from Scratch
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
How to Clean Install OS X Yosemite
OS X Mavericks- Erase and reinstall OS X
OS X Mountain Lion- Erase and reinstall OS X
OS X Lion- Erase and reinstall Mac OS X
Note: You will need an active Internet connection. I suggest using Ethernet if possible
because it is three times faster than wireless.

HT1430 My Ipad won't start up. The apple logo appears and just stays on the screen. after a while it starts blinking every minute

My Ipad won't start up. The apple logo appears and just stays on the screen. after a while it starts blinking every minute

Try recovery mode as described here.
Note you may have to try to enter recovery mode more than one time to succeed.
HT1808

My macbook 2007 won't start up past the logo screen.

My macbook 2007 won't start up past the logo screen. I've tried to boot the computer off the install dvd that came with it but it comes up with a box saying that Mac OS X can't be installed on this computer. It has a yellow triangle over a hard drive in the box. What do I do?

You need to start the MacBook with the original DVD that shipped with the MacBook. then run disk utility on your hard drive to repair it, also repair your permissions.

My computer won't start up past the gray screen

My computer won't start up past the gray screen and then shows up with the forbidden sign where the apple logo should be. I have tried booting in safe mode and PRAM and neither works. Any suggestions on what I should do next? Or any idease of what might be wrong?

I had the same problem, I believe it is called a kernal panic. They had to replace my hard drive. I did have apple care or it would have cost $450. The guy at the genius bar did some tests to see if he could fix it, he couldn't, so I had to have the hard drive replaced.

My macbook air won't get past the white apple screen. I've tried power cycling the batter but won't help

my macbook air won't get past the white apple screen. I've tried power cycling the batter but won't help

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
Step 1
The first step in dealing with a startup failure is to secure the data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since the last backup, you can skip this step.
There are several ways to back up a Mac that is unable to start. You need an external hard drive to hold the backup data.
a. Start up from the Recovery partition, or from a local Time Machine backup volume (option key at startup.) When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.” The article refers to starting up from a DVD, but the procedure in Recovery mode is the same. You don't need a DVD if you're running OS X 10.7 or later.
b. If Step 1a fails because of disk errors, and no other Mac is available, then you may be able to salvage some of your files by copying them in the Finder. If you already have an external drive with OS X installed, start up from it. Otherwise, if you have Internet access, follow the instructions on this page to prepare the external drive and install OS X on it. You'll use the Recovery installer, rather than downloading it from the App Store.
c. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, start the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
d. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
Step 2
If the startup process stops at a blank gray screen with no Apple logo or spinning "daisy wheel," then the startup volume may be full. If you had previously seen warnings of low disk space, this is almost certainly the case. You might be able to start up in safe mode even though you can't start up normally. Otherwise, start up from an external drive, or else use the technique in Step 1b, 1c, or 1d to mount the internal drive and delete some files. According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation.
Step 3
Sometimes a startup failure can be resolved by resetting the NVRAM.
Step 4
If you use a wireless keyboard, trackpad, or mouse, replace or recharge the batteries. The battery level shown in the Bluetooth menu item may not be accurate.
Step 5
If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
Step 6
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to start up, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can start up now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.
Step 7
If you've started from an external storage device, make sure that the internal startup volume is selected in the Startup Disk pane of System Preferences.
Start up in safe mode. Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to start and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know the login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
When you start up in safe mode, it's normal to see a dark gray progress bar on a light gray background. If the progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, the startup volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 11. If you ever have another problem with the drive, replace it immediately.
If you can start and log in in safe mode, empty the Trash, and then open the Finder Info window on the startup volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then restart as usual (i.e., not in safe mode.)
If the startup process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 8
Launch Disk Utility in Recovery mode (see Step 1.) Select the startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.
This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then restart as usual.
Step 9
If the startup device is an aftermarket SSD, it may need a firmware update and/or a forced "garbage collection." Instructions for doing this with a Crucial-branded SSD were posted here. Some of those instructions may apply to other brands of SSD, but you should check with the vendor's tech support.
Step 10
Reinstall the OS. If the Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 11
Do as in Step 9, but this time erase the startup volume in Disk Utility before installing. The system should automatically restart into the Setup Assistant. Follow the prompts to transfer the data from a Time Machine or other backup.
Step 12
This step applies only to models that have a logic-board ("PRAM") battery: all Mac Pro's and some others (not current models.) Both desktop and portable Macs used to have such a battery. The logic-board battery, if there is one, is separate from the main battery of a portable. A dead logic-board battery can cause a startup failure. Typically the failure will be preceded by loss of the settings for the startup disk and system clock. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.
Step 13
If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

Macbook pro-Freezes with black screen at start up.

Macbook pro-Freezes with black screen at start up. I've tried inserting the Mac OS X install disc to run the hardware test(Restart and hold down D), But it still does nothing. Just the black screen. Now I can't get the disc out. I've tried holding down the track pad key upon start up but that doesn't work neither.
What do I do??? Please help.

Remove the battery to find your serial number in the battery bay. Then you can look your MBP up on EveryMac.com:
http://www.everymac.com/ultimate-mac-lookup/
That will give you all the information on your Mac.
This is assuming that you have the MBP with the removable battery and not the unibody. The unibody has different graphic chips.
Good luck!
Message was edited by: S.U.

OS X won't start; stuck on the Apple logo

I went out of town on Friday and shut down my iMac G5 (Intel, purchased brand new January 2007). When I got home today and tried to boot it up, it stuck on the grey screen with the Apple logo and spinning gear. It will stay there until I either unplug my iMac or hold down the power button until it shuts down. This happens every time I attempt to boot OS X. I try to start in Safe Mode (holding down shift), but get the same result, same when I unplug all peripherals. I can, however, boot Windows XP via Boot Camp, which is what I am using to access the internet right now. Everything seems to be working perfectly in Windows XP, but it won't boot at all in OS X. I don't have access to my Install disc right now (It's at my dad's house; we got the family version of Leopard.), but I could get it if I absolutely have to.
Any suggestions? Thanks.

Your problem may be different, so it might serve you better to start your own thread. That said, both problems occurred when switching locations, so I wonder if the network/wifi might be involved. However, Niels, if you are unable to start at all, with any of those methods, there may be something more serious involved (we have had no feedback from the OP in the last few hours).
Showing the last screen suggests a total (and unusual) freeze with the computer not having shutdown or gone to sleep. Did you close the lid and leave it? If you cannot start with the disk or with the Option key it is not simply the OS gone awry, IMO.
Last resorts?
One thing not tried is to hold down the Command, Option , P , and R keys on the keyboard to reset PRAM.
Also, as a really last resort, hold down the Command, Option, O, and F keys. A grey screen will appear with a command line. Type +reset all+ and if that does not work, it is off to the shop.

IMac won't start up passed the grey screen

Last friday my iMac (late 2006, 24", 2.33 duo core Intel, OS 10.6.8) gave me the spinning beach ball.
Restarting resulted in: first the apple screen with the progress indicator, followed by grey screen..
That was it. It hangs at the grey screen.
I've been busy this weekend testing all kinds of ideas to get my imac to fully start up again.
I checked the RAM, it's fine.
I flushed NVRAM, wild guess, but nothing changed.
Starting up in safe mode doesn't work.
Starting up in recovery mode doesn't work.
On the upside, I was able to start my imac up in Target mode. Using the host computer and Disk Utlity I can see there's nothing wrong with the HD. All the data is still there!, so later today I'll make a copy of the complete HD, hoping/thinking that I won't copy whatever is wrong.
I had Disk Utility repair all the permissions.
I've used the host computer to reinstall the OS on my imac.
But on start up my beloved iMac still won't get passed the grey screen.
I'm thinking something goes wrong before my Mac even gets to the HD. Maybe it's the firmware, but I'm not really sure that firmware matters in this case. And I wouldn't know how to reinstall the latest version of firmware because my imac won't start up from it's disk drive
I'm thinking maybe something could be wrong with the graphic card's RAM, though on start up I can see the apple logo just fine.
I'm not able to start up from CD, I've tried that because I wanted to reinstall my OS (before I figured out how to do that in Target Mode) by putting the OS disk in my imac's own disk drive. Staring up with the C key still gets me the grey screen. Staring up with Option key shows no other option but the HD.
So is there anybody out there who has an idea that could help me further along?
Any help is greatly appreciated!
Frank

Hi Jan,
If you have another firewire Mac you can check if the HD of your Mac is OK by connecting them with a firewire cable and use target-mode. That way I found out my HD was just fine.
It also offers you the chance to run a diagnostic program to check if anything else is fine. I used TechTool to do that. But everything checked out fine.
In the end I decided the problem is probably hardware. Some electronic part that broke. Very frustrating that some small transistor or so is keeping me from using my otherwise fine iMac.
I contacted a repairshop that also works for the local Mac retailer. They told me my iMac was concidered 'classic' and therefor it wasn't economically not worth the trouble trying to repair it.
I gave up, took two weeks to mourn the loss of my beloved iMac, and bought a Mac mini.
FrankV
Judging by your name I'm guessing I could've anwered this in Dutch.

Powerbook won't get past OSX gray apple screen

powerbook pismo running OSX for years...much joy and happiness,
up to this point.
Upon starting up my powerbook, I get the good chime and then the gray screen with the apple but no spinning wheel at the bottom, it will go no further.
It just sits there with the gray screen and the apple. I've tried the following:
Safe mode
Reset pram
target mode from another mac shows the pismo hard disk. I can run disk utility on it and the drive is ok.
Still no startup.
Reinstalled the OS from the other mac using target mode and it installed ok. Still no further than the gray apple screen.
It will not start from DVD or from a firewire drive with the OS installed on it
It does see the system folder when I tell it to let me choose a system at startup. I choose it and we are back at the gray screen.
Is this a pram or firmware issue maybe a internal battery
I have other macs, and I can move on, but still would like to solve this puzzle.
Thank you very much.

zydeco,
I am not sure if I can help, but here are a few suggestions...
1. If you have the original software, you may still have the Apple Hardware Test CD. Disconnect all peripherals including a USB mouse, then see if you can boot to the CD.
http://docs.info.apple.com/article.html?artnum=112433
2. If you have the internal original AirPort card, remove this card and try starting. A bad card can prevent startup.
http://docs.info.apple.com/article.html?artnum=50028
If neither of the two suggestions help, please post back.

Macbook Air won't start up past the "apple" page, and has a spinning icon. help!

The computer was left on for over a week while I was out of town, came back and it was slow, then it started doing the "spinning beach ball" so I shut it down and now it won't start up again.

Hey Sarah.
The spinning beach ball of death is a tricky issue to fix.
You can delete everything in the caches folders located at:
~/Library/Caches
/Library/Caches
Also try an SMC/PRAM reset:
PRAM RESET:
Shut down the computer.
Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.
SMC RESET:
Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
Release all the keys and the power button at the same time.
Press the power button to turn on the computer.
Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.
If you still boot to the apple screen your next option is to boot to the Mac OSX install DVD and run a disk check/repair.
Hold down option with your OSX DVD in your drive, click on the cd that appears, boot to the OSX DVD.
Click on utilities in the menubar, go to disk utility, select Macintosh HD, run a check/repair.
If this fails you'll need to run the Max OSX installer and reinstall your Mac OSX.
P.s since you have a Macbook Air your install DVD is the usb stick you would have got with your MacBookAir.

G4 Won't start. Stuck at Grey Screen with Spinning wheel

It won't make it past this screen.
I have a Dual G4 867Mhz with 2GB ram. (3) harddrives.
Any Help would be greatly appreciated.
Thanks
The last thing that happened was last night I left my computer on downloading some stuff. When I woke up my dad had unplugged the ethernet cable and It had locked up some programs with the spinning beachball. I proceeded by trying to shut the program with apple+q. It shut down the Finder window. I then was forced to just shut down the computer by holding down the power button. I didn't try starting up again at that time, but now about 3 hours later I tried to start up again, and it's stuck at this screen.

Install OS X on one of your disk drives. Or get a FW case and drive, then update to 10.3.9.
Buy a copy of Disk Warrior 4.
Ask Dad.

IPad 2 is won't start only showing the apple sign

Hi,
my iPad2 died on me. It was very low in battery, so I started charging it. Everything looked fine until the apple sign came up. And that is it. It won't start. It doesn't connect to iTunes and re-start doesn't work either. Any suggestions? Thanks for all help!

BTW - it doesn't seem to charge either. Apple sign only comes up while connected to power output (and trying to re-start), when I disconnect and try to re-start I get the "low battery - connect to power" sign - even though the iPad has been connected for several hours.

MacBook Air won't start up to log in screen

MacBook Air won't start up, apple logo displays the rotating circle then displays a diagonal bar through a circle

Restart.
http://support.apple.com/kb/ts2570
Start up in Safe Mode.
http://support.apple.com/kb/PH14204?viewlocale=en_US
Repair Disk
Steps 2 through 8
http://support.apple.com/kb/PH5836
Reset PRAM. http://support.apple.com/kb/PH4405
Reinstall OS X
http://support.apple.com/kb/PH10763?viewlocale=en_US

Powerbook G4 (12" aluminum" won't start up (freezes with apple screen up)

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