Chosen Solution
phone was working fine for past year…removed sim card and when i put it back phone was not detecting it…have tried other sim cards and they not been detected either…is there a problem with phone
could be, 1-Check the sim connector whether having damaged pins or bent ones 2-Re solder the SIM card holder pins and try 3-Change the sim reader 4-if non of above works you should have to replace SIM central IC too
