no sim error even after changing new sim slot.?

my lumia is getting NO SIM error even after replaced with new sim slot. waht to do. is it a hardware(motherboard) problem or software problem.

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0