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I have been striving to bring my laptop to life, however, I am seeing a flashing question mark on my MacbookPro screen.

I tried disk utility and it is just showing me Media and it is 0 byte.

I ran DiskWarrior and it gave following error: An unexpected error occurred while communicating with this hard drives built in S.M.A.R.T. diagnostics, error -536870210, 28260C-

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What brand and type of hard disk is in your system? Part#? – Pro Backup Jan 18 '13 at 9:40
It is what I got from Apple only. Segate momentum 5400 rpm 250 GB (I don't know exact name.) – Bharat Patil Jan 18 '13 at 17:30

I installed a new hard disk. Problem was my old harddisk died because of shakes.

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