i have samsung galaxy sgh i437 (galaxy express) at&t 4g lte qualcomm
i m using in india and i think the phone is unlocked
the problem is when started to use dis phone
i m getting a network problem...
i can get network use the phone calling,net,sms etc wen i m out of house or just out of sheltar but wen i get into my home or shelter just gets too low get blocked showing circle under xmark it
i tried al the other network but the problem is same i tried changing manually n automatic but n solution
sorry for my english
plz any can u find me solution for dis