Hey guys, how often do SIM cards "go bad" ?
Reason being, I needed to have my SIM card replaced because it wasn't connecting to the network properly and the T-Mobile rep gave me a new one, it didn't work, so he gave me another one, then it worked. What are the odds of that?

I am interested to see if people have gone through multiple SIM cards with their Blackberry devices.

I've had the same sim card for 2 1/2 years.

I think mine is failing. I keep getting dropped calls constantly avg phone conversation lasts 7 minutes, then I lose call the bars and then seconds later they all come back. I get it in like hmmm 02 or 03 maybe?

since the nokia 3200b came out. 4 phones later. It is a 32kb simcard I think(old school at&t wireless).

So I'm guesimating 4 years for me at least. Just used as phone though no data.