Will not boot past grey screen
My MacBook Pro boot to the Apple Logo with progress meter just fine. After a normal space of time it continues as though it is going to boot normally but instead of going to the blue screen or blue screen with the cursor arrow it goes to what I would call a white screen and just stays there without booting any farther.
I have changed the Ram, I have reset the PRAM, I have changed the HDD, but it hasn't helped. It will boot in the Safe Mode without a glitch but when I try to reboot in the Normal Mode it returns to the white screen after displaying the Apple Logo and progress monitor.
I do not have the original install discs for this computer and even if I did have I wouldn't know how to best use them.
Can anyone help me?
If the system will boot into Safe Mode functionally, it's possible that the damage is limited to your user account. Some user resource may be damaged, or you may have installed some software recently that's loading at startup and screwing something up.
One diagnostic trick is to log into safe mode, then create a new user account. Go into System Preferences>Acc
You say you replaced the hard drive. Did you transfer all the data from the old hard drive to the replacement? If so, you probably copied the problem data from the old drive, too.
Once you get a usable external drive with 10.4.6 through 10.6.8 (either a bootable hard drive, or any bootable system install disc - retail or OEM, whether it's intended for your computer or not), boot from that drive. When you're fully booted to the finder or the system installer:
- locate Disk Utility (in HD>Applications
>Utilities on a hard drive, in the Utilities menu on an install disk)
- select the icon for your suspect hard drive in the left-hand pane
- click the "First Aid" tab
- click "Repair Disk"
When that operation has finished, look to see what got "fixed". If there's a long list, run it a second time; you should get fewer things repaired.
Once you've finished with Repair Disk, quit Disk Utility and reboot from your hard drive. Ideally, you should then be able to boot to the finder.
I have the same problem on my A1150 Mac Book Pro with a grey screen at boot up after the apple logo, even after a SMC reset, and PRAM reset, same issue, but I can boot using a safe boot, although the mouse has a small checkered box once I am in OS X 10.6 Snow Leopard. I ran disk utility in Safe boot from another disk partition with another copy of OS X 10.6, and found no problems with bad blocks / inodes on the hard disk, or disk permissions issue's.
This 2006 Mac Book Pro computer was given to me by an Apple consultant who told me that it would only boot into a black screen so his customer gave it to him when he upgraded him to a new Mac Book pro, it also had no video using an external monitor.
I googled the black screen issue, and found a you tube video on "How to Bake My Mac".
I thought what do I have to lose, a new logic board would cost more then what these sell for on Ebay, so I thought I would see if this was a hoax or would actually work, I also wrote to mythbusters first and posteed on their facebook page asking them if this would work, but after several weeks with out a reply, I decided to use Ifixit to see how to take it apart, and removed the logic board, which has an embedded ATI 1600 GPU. I triple wrapped the logic board in foil, exposing just the GPU chip, and placed it in the oven to re-flow the GPU chip solder, after it cooled down I put the Mac Book Pro back together and installed SMC fan control to raise the speed of the cooling fans in hopes to keep the CPU, and GPU cooler, and it's been working for several months with out issue, until this past week.
Could this be an issue with the PRAM battery causing the grey screen, or possibly the GPU needs to be re-balled with a BGA reworok station for a more permanent repair?
Since it's a 2006 Intel Core Duo, and not a Core2 Duo CPU, it's just not worth buying a new logic board or paying the $150.00 to have it reballed.
Jose F. Medeiros
The Unemployed IT guy!