13" aluminum unibody, 2.0 or 2.4 GHz Core 2 Duo processor.

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Grey screen after apple chime.

Hi, my Macbook get a grey screen after chim .

Its happens after i did a upper case swap ( my case was bent). Macbook has no spills or any problems before.

I dont have a mini DP cable to test a video output.

I did memory swap with another Mac- but no luck.

Any suggestions?

Thank you!

Block Image

I tried to reset SMC and PRAM- no luck

Also tried to boor in safe mode- same grey screen.

I did a upper case with keyboard because my case was bent.

Macbook boots up and i can adjust brightness of the screen and sound volume

but its only no image on the screen.

Thanks

mayer, sorry about that my bad

ordered a mini display port cable to check on the external monitor.

No image on external moniror as well :(

I decide to sell it for parts , but nobody want it

Next step is reballing a gpu Nvidia on logic board

Answered! View the answer I have this problem too

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When you just change the question without addressing or acknowledging my answer, it makes my answer look pretty stupid.

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Let's wait till your part comes in to check the LCD further.

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Chosen Solution

First I'd like to see if we're both on the same page. Is this what you replaced: MacBook Unibody (Model No. A1278) Lower Case

Reset the System Management Control and PRAM:

The link to reset SMC is

http://support.apple.com/kb/HT3964

The link to reset PRAM is

http://support.apple.com/kb/HT1379

Next try starting in Safe Mode by holding down the Shift key on start up.

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mayer, sorry about that

my bad

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