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Released April 2010 / 2.4, 2.53 GHz Core i5 or 2.66 GHz Core i7 Processors

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My MacBook will not boot up after installing is update. Just chimes

I installed latest OS and now I get one chime followed by some data readout information and then it repeats over and over again. Only info I can make out is OS version: not yet set

Answer this question I have this problem too

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So is it rebooting after the kernel panic? Keeps doing it over and over?

Does it look like this?

Block Image

Do you have the original system installation disk?

If you do not have the disk you may have to do an internet install, here's how:

http://osxdaily.com/2014/12/14/reinstall...

I am also working with the same problem just on a newer model. I'm about to try lowering the RAM to see if it helps. Here's my question on it:

Kernel Panic with El Capitan and above

UPDATE 4/3/18

I contacted Apple suss port on this issue. After a couple of hours and call backs, I have managed to get Apple to better efforts to resolve this. I have uploaded the log to them and it is now going to the specialists for help. They told me they would get back to me within the week.

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4 Comments:

Yes it looks exactly like that. i did a command r and i am reinstalling the OS. I will get back to you if this solved the problem.

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It's not a RAM issue on mine. I did clean installs and as high as I can go is 10.10.5 Yosemite. Above that and it panics.

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The above worked. Power on with the command and R keys press. Hold until screen goes black. follow the prompts and select reinstall OS.

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I may have found the problem. See if you are running this BootROMVersion: MBP91.00D3.B15

To do so go to System Preferences > System Report > Hardware overview third line up from the bottom.

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