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OS X - Operating System General OS operation information and support

Help! MacBook 6.1 takes 5 tries to turn on!


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FatalityBoyZahy

 
Member Since: Sep 11, 2011
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Mac Specs: White Unibody MacBook

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Hey guys, I tried installing Ubuntu on my MacBook, and now, it takes me 5 tries to boot into OS X. On the first boot up, the LED Indicator will flash rapidly, and then I'll hear a long beep. After that, I need to turn the computer on & off about 4 more times until I'm finally able to access the Grey Apple Screen, and boot into Snow Leopard. I've tried reformatting my drive, and installing Snow Leopard and Lion. I even tried other hard drives. I tried remove my RAM & HDD, and then booting up, an zapping the NVRAM, but I still have the issue.

Somebody please help!
I don't want to pay $500+ to get my LogicBoard replaced, because I'm out of warranty. :/

Once the Macbook boots up, it works fine though.
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pendlewitch

 
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Have you checked the cables to the charger/psu particularly the input cable to the MacBook itself ? All manner of strange things happened to an old iBook G4 of mine until the insulator completely wore through to reveal broken strands of conductor. It may be completely unconnected to the uninstall and random connects/disconnects of the charging/power circuit may be throwing you off the scent. Borrow a cable from a friend to check.

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FatalityBoyZahy

 
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I know it has nothing to do with the MagSafe, because I get this issue on battery power as well

White Unibody MacBook; 2.26GHz Intel Core 2 Duo
4GB 1067MHz DDR3 RAM
320GB 5400RPM HDD
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EvenStranger

 
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The rapid flashing and long tone indicate an EFI firmware issue. Did you make any changes at the firmware level, maybe playing with a boot loader for Ubuntu? You might try downloading and installing the firmware update again.

EFI and SMC firmware updates for Intel-based Macs
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FatalityBoyZahy

 
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I found a fix! I just don't know how to flash it.

https://bugs.launchpad.net/ubuntu-re...9/comments/111

Could somebody PLEASE explain how I would go about flashing this? I don't understand the instructions!

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White Unibody MacBook; 2.26GHz Intel Core 2 Duo
4GB 1067MHz DDR3 RAM
320GB 5400RPM HDD
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chscag

 
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The instructions for updating the firmware are included in that message you linked to. You need to use Terminal.... it's the last command statement:

Quote:
sudo bless -mount / -firmware MB61_00C8_B00_LOCKED.scap --verbose
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