Why isn't my phone reading the sim card?
Everything on the phone works great. The only problem is it will not read ANY sim card and will not connect to the network to make or receive calls and texts.
Contact your phone/sim provider to troubleshoot this as its a fairly new phone and should still be under warranty.
may be your phone is locked or insert your sim card again correcty.
Remove the back cover and take out the battery and SIM card. With an exacto knife, gently lift up the spring contacts that connect to the SIM card. This worked for me.