Macbook updated Mavericks then EFI now it won't start - bricked - dead

I updated my Macbook to Mavericks and it was running fine. Got the notice to install updates including EFI update and did that but now it won't boot. Screen is black and no chord sound when I turn it on. Dead as a brick.
What do I do now? I'm thinking the EFI update just killed my Mac.

You have 90 days of free support at the Apple Store and if you buy AppleCare it's up to 3 years of support and hardware warranty.
Also buy a external drive for TimeMachine backups.
This is the best course for you as Apple can also run a diagnostic on your machine and if it's determined to be a bad hard drive, they will replace it with a good one.
We can only help those who are a bit more seasoned and can take some rather drastic actions.

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Macbook updated Mavericks then EFI now it won't start - bricked - dead

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