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Mid 2009 Model A1278 / 2.26 or 2.53 GHz Core 2 Duo processor EMC 2326

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Unable to write to the last block of the device error

I had hard disk errors so i ordered a new one. When I booted using the USB boot drive (Mavericks) and run disk utility to partition it, I am getting “unable to write to the last block of the device” and “Unable to erase or partition” error. I read about your solution above, but wondering if it would work on the internal SATA hard drive. I also tried to create a new partition, but it fails too.

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Chosen Solution

Replace the hard drive/IR cable with a NEW one and see if the problem persists.

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