My phone is not detecting the sim card and not showing IMEI,Baseband. What do I do?

[AC Question]

I Have the phone Sony xperia E C1504 . I Installed Custom rom KitKat Cyanogenmod11 Nanhu unofficial in that by unlocking the bootloader It was good for a month after that suddenly it doesn't the network that is undetection of my simcard and also my phone is not charging.By using the USSD codes *#06# its showing the IMEI number in dailer and also in settings as unknown. Many times I had factory reset my phone. There is no change. Please anyone help me out.