Another Swap magic prob

[nanotechmonkey]

Well, as many of you know, i recently installed a Swap magic with Swap tools for my PS2. Well that was model scph-70003. I had to get it replaced due to an error it had with PS1 memory cards and took it back. I just got it home to find that piece C (the hinge) will not work. Now I know ceramic models have a special protection, but this isn't anothe colour. Moreso, it says that it is ALSO scph-70003. SO I was wondering what i can do, and also if someone could tell me if there are two versions of the same model ( know there are a few other models of this version flying around, but I meant two scph-70003).

Oh and please don't just say "Buy a mod chip" because that isn't useful as I have a reason i don't want to buy one.

Thanks.