T-Mobile sent us new SIM cards for our four year old cell phones. T-Mobile has merged with Sprint, our old carrier. New SIMs will allow for better performance, they say. Only problem I ever have is when we are in a park with giant trees between us and the towers. I often get not even one full bar in the forests. Even goofing with my game is not possible. I play E&P.
I want to upgrade! Just not quite there yet.
But there are instructions on the website we are supposed to follow to do it all ourselves. I've done it to other phones many times when I was working at BB. I have lost our little "keys" though. Another casualty of our recent move. Finding a paper clip or a needle small enough is a hassle.
I would have tipped my hat to them if they had sent keys with the new SIM cards.