So 3 days ago I went to sleep with my phone recognizing my sim Card but 5 1/2 hours later it now doesn't and just gives me the "no sim installed" symbol in my status bar. I have tried wiping the devicd clean multiple times including the cache. I have tried entering in the apn manually and whenever I try to connect to att through the settings page I get an error saying that "my sim is not provisioned for service with this carrier". Yes my device is rooted and bootloader unlocked just to let you know. So if anyone has seen or heard of this please let me know below. Thanks