How to replace the internal hard-drive in an Imation Apollo 500GB 2.5″ portable hard-drive

A few months ago I got an Apollo 500GB 2.5″ portable hard-drive from Imation. It’s nice and compact and I used it to store movies, music and other random crap. About a month ago I was trying to copy a few files onto the device when I noticed that operation was extremely slow. It was so slow that it was pretty much unusable. I wanted to test it out and see what the problem was, but I got busy with work and also my parents were visiting and so I was flying to California almost every weekend. When I finally got around to testing it out, I found that I couldn’t even mount the drive properly now. I could neither do it in Windows 7 nor in Ubuntu 9.04. Ubuntu would recognize the drive and it also saw that there was a partition on there, but other than that it wouldn’t do anything. I tried to use gparted to format it, but it wouldn’t even show up there. In Windows 7, I used Computer Management and when to Drive Manager. Intially the drive wouldn’t show up, but after unmounting and remounting it a few times, it finally showed up. I deleted the existing partition, made a new one, and then tried to format it. The format never finished; it was taking far too long. I then tried to format it in Ubuntu and this time gparted saw the drive, but it was unable to format it as well. I suspected that it might have some hardware issues (which is strange, because it’s not like I used it in a rough manner. Imation should probably make their drives tougher!) and so I tried to run some SMART tests on it. Ubuntu’s smartmontools doesn’t support USB drives. But on Windows, I used a trial version of ArgusMonitor to test the drive. As I suspected, there were a whole bunch of errors. Many sectors were unreadable and Argus suggested that I back-up all data immediately. I didn’t have much data on there anyway and so I figured the drive was pretty much toast. Then for kicks I wondered if I could replace the internal hard-drive. It’s basically a 2.5″ SATA hard-drive and I had an extra one lying around, and so I decided to see if I could replace the hard-drive.
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