I don´t have the plastic tools, which I believe are meant to open the device without scratching it. I still haven´t repaired my iPod Classic, but I followed the instructions to open it and identify the hard drive model so I could order a new one. I opened it with a round blade knife and two coffee spoons. :) I wasn´t afraid to scratch the dang thing as it was already badly scratched. It will be my "backup" Classic, as I already got myself a new one (one of the last ones).
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