Hi there,

I recently had my logic board replaced as the battery was not holding a charge. Since then my MBP has frozen (total freeze of screen mouse wont move) a couple of times. Also for a couple of days I couldn't boot at all (grey question mark).

After numerous (identical) attempts to boot into target disk mode I was able to mount my 2 volumes (osx and xp) and run disk utility. The volumes passed all tests. After doing this the next time I restarted I was able to boot successfully. After a few hours the computer froze totally again. For the next two days I was unable to boot at all or even start the computer in target disk mode.

As of yesterday it seems to be working ok. Sometimes i need to try to boot 4 or 5 times (don't get any icon, no power on beep, just grey screen) before it will startup. os x is the default startup disk.

All my service centers here are currently 6 -8 days to quote and given the intermittence of the problem (and the fact it only started happening after last service) I am very hesitant to send it in. However its becoming problematic carting my old ibook everywhere with me in case the MBP wont boot!

The only error i receive in the system.log is kernel[0]: disk0s2: 0xe0030002 (UNDEFINED). But as previously mentioned the drives verified in disk utility when in target disk mode. So i'm thinking either the disk is faulty or the logic board. a technician said it might be software related (the boot camp 1.2 update was applied about the time of service and around the time the problems started occuridng as well) but i'd rather not do a full rebuild of both os' if this is not likely.

all advice much apprecaited!
Reuben

UPDATE:
Ok now after power on it just stays grey screen for ages. I cannot put it into target disk mode or boot from cd or access the hardware test either.

does this means its definately a problem with logic board or could it still be just software?

Software

Connect it to mains power and see if it makes a difference.

The same happened to me. Turns out I have to remove my USB hub BEFORE I put it to sleep or I get the same thing you do.

thanks for the quick response!

its mains powers and no other periphials. ok so i will give the reinstall a go then. how did you resolve the issue when it wouldn't boot?

to clarify when i power on i get just grey screen and cannot boot from HDD or from DVD or even put into target disk mode.

thanks again.

ok afte about 10 minutes of sitting there it booted into the install cd.

now no volumes are available to install to and only the dvd shows up in disk utility.

this is defaintely hardware now yeah?

Okay no target disk mode = hardware failure.