after successfully recover from hard brick now i m facing network issue. the problem is that phone detect sim but sometimes doesn't registering network manually or automatically. even if network is there still i m unable to make or receive calls. when i make call screen goes blank and after 10 sec it shows call ended. network appear and disappear automatically. everything working fine i.e wifi and all only issue is network. there is no issue in sim card as it works fine on other phone. already tried 3 sim but same problem. i am on 5.1 stock firmware right now. i thought might b its ROM issue thn i tried Los but facing same issue. i also erase modem. but no result can anyone know how to solve issue?