Sounds like you need another hint. I think we're all a bit afraid of spelling out exactly how to change a product ID on an
N95 because it will more than likely result in a voided warranty. No one wants to claim responsibility for that.
That being said, and hoping you understand I'm not liable for any damage done to your device or its warranty- I'm probably going too far by inputting the three letters "N", "S" and "S" in this reply.
Google is your friend.