Hi friends, Please help me, my phone is SONY XPERIA M2 DUAL ( D2302 MODEL) After entering *#*#4636#*#* in my Sony Xperia m2 ,i selected phone information,pressed the 3 dots menu key on left of phone, than clicked "select radio band". In that there was only one option i.e "set gsm/umts band" which read "usa band". I selected that and instantly lost network signal. I live in india and please help me friends. Now i am not getting any signal. I tried to press the menu key again but it reads "usa band only". Finally i also did factory reset, Pc compaction repair ,but still i could not get signal. And my friends rooted my phone by kingroot & also unrooted by kingroot. And i don't know much about ANDROID, I AM NEW IN ANDROID PHONE, AND what is flashing rom and all I DON'T KNOW THAT. Please help me in this regard.