Galaxy Note 4 N910F (no service & emergency calls only)

i am using galaxy note 4 n910f variant
issue i am facing is 4 days ago my phone just randomly showed no service i thought maybe a service issue
i replaced sim for sim provider then again it started working
after a day it again didnt work till today
i have 3 sims of different service provider i have tried all in this phone didnt work
and are working in my other phone bb bold 9900
i downloaded a firmware 5.1.1 and flashed with odin
Baseband N910FXXU1COH4
BUILD NO LMY47X.N910FXXU1COH4
CAN SOMEONE HELP ME REGARDING THE ISSUE
REGARDS