Mery pas lgd850 hai mene us ko twrp se marshmallow rom install kia to fastboot mode lag gya mene software karwaya to us ne kaha k is ke board pe sl990 likha hai usne kaha iska software dalna hoga us ne kar dya ab mobile chal gya lekin signal nai aa rhe mobile singal sim hai but jab sim lgao to 2 option ajate hain screen pr insert sim aur dosri tarf se mobilink likh k ata hai aur 5 secound ke bad emergency call likha ajata hai koi bta sakta hai masla kesy hal hoga