No Mobile Network In Samsung Grand Prime

Samsung Grand Prime Phone. There is no Mobile Network. I tried *#*#4636#*#* but it didn't bring up the Testing Menu. I am not able to search operator or change the network mode. The IMEI in *#06# and in the phone is same. When I remove the sim it displays insert sim card. When I reinsert it, it's able to find there is a sim inserted but there is no signal. I installed Network Mode app and it shows Radio is Off. Turn Radio On is not working. When I get into settings for mobile network, it will not allow me to search. When I click search it will say mobile network not available. Both automatic and manual search says the same. The SIM works fine in another device. I can confirm its definitely device. Can somebody point me in the right direction? **EDIT** I have updated the phone using Kies and now its in 5.0.2. Still no signal. There is a Blocked Symbol near the Wifi Symbol **EDIT2** How to check that I have correct modem for the phone ?