Okay so, Saturday i purchased this phone with the unlimited plan. From time to time, it would stop working and not let me send or call anyone so i would restart the mobile phone and it would always say something to do with the sim, so then i restarted it and it would come up but not show my minutes or allow me to read anything cause it would say reading sim. It would read the sim for hours at a time then it'll work for a while then do it all over again. Today I master cleared my phone and it worked for some hours. Now, It started this evening and I cleared it and now it's saying sim not valid, I haven't used a different sim card. I ordered a new one, and it'll be here soon. Could anyone help fix it?