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Grey Apple Screen after LCD Replacement

I am attempting to fix a broken LCD screen for a friend in an A1278 13" Macbook.

I ordered the LCD from iFixIt and installed it. However, upon boot up I get the grey screen with the Apple Logo, the Grey Pinwheel, and a Progress bar. The Progress bar progresses about 1/10 of the way, pauses, then goes away leaving just the still spinning grey pinwheel.

The grey pinwheel will spin forever so far as I can tell (I've left it overnight).

A few notes:

  • I've tried two LCD cables. Neither worked.
  • The iSight camera fell out at first, I think I hooked it up properly. If I did't would that cause this issue?

Thanks in advance.

New Information:

I put the original LCD back in the macbook and the issue persists.

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Hi, since the laptop tries to boot up, have u tried booting into safe mode? You can do that by pressing shift during start up. Write back on what u did.

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Not having access to an external monitor I decided to try unhooking the hard drive and putting in an OS X Install Disc. That did the trick. It would seem somehow in the process of swapping LCD's the hard drive became compromised.

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With the LCD disconnected and the cable insulated so it won't short out try connecting an external monitor (bypass the internal display chain altogether). If you see the same thing i's your HD not your video chain.

Try booting to the repair sector or disk

Try booting from a different known working boot volume (optical disk, thumb drive, target disk). If you get a normal boot to the external monitor repair the internal boot volume. Only then go back to connecting the internal display chain.

If this answer is acceptable please remember to return and mark it.

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dougwardell zal eeuwig dankbaar zijn.
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