以下是某使用者寫的感想....

It is not too good a construction. The HDD caddy has some parts that very easily gets stuck to the chassi.

The best thing is actually unscrewing all the screws on the bottom of the chassi, and gently expanding the hole where the HDD cover used to be to just lift the chassi a bit away from the HDD caddy.

Or you can just use brute force and pull, as I did the first time.
You will bend the thin chassi a bit, but you can always bend it back before putting it back in. - I would go with the unscrewing and gently lifting thoug.

Good luck, if you're still attempting.

話說我請我家做工的老弟也拔不出來阿..........