Where are you living which country? You have to choose that country's modem file and the file which is made for the motherboard. If you replaced both of this components you need to know which country's chip on those components are placed.
You need to know which board and modem you have. Maybe you need to flash separately the files for those. I think it will fix your problem when you flash the right files.
I think you've flashed wrong CSC. At first you need to know which modem file you have flashed. You changed only the motherboard and not the modem thought?
transi1 you did a awesome job! Congratulations! This is the smoothest, fastest and most stable ROM I've ever used.
Thank you for your time and effort which you have spent for this ROM.
INCREDIBLE, AWESOME AND UNBELIEVABLE!