Today my phone (Galaxy S Blaze) randomly could not detect my sim card. I checked it to see if it had moved out of place and I restarted the phone but to no fix. I know that the sim card is working because I tried it in a friend's Galaxy S 4G and it worked fine. I tried to hold the sim against the contacts to see if it wasn't making contact but it still didn't work. I'm not really sure what's wrong. Help would be appreciated, thanks.