Last week I got this message on my Nokia 2610 "SIM card registration failed", or something like that. I tried to make a call, but some of the buttons didn't work. However, after I turned it off and then on again, everything was fine. This happened a couple of times since then, but the phone worked. This was happening after it was in my pocket for a couple of hours, turned on. Someone I talked to told me this is the beginning of the end and can't be fixed. However, I read somewhere online that cleaning the contacts on the SIM card works, so I took it out and rubbed the contacts with a cloth and it hasn't happened since. Do I have anything to worry about? If the SIM card finally fails and doesn't come back, will Rogers replace it, or will I have to throw away the phone and buy a new one?