I just bought dis fone not long ago (samsung galaxy grand prime) and the problem is dat oda network works perfectly on it bt d problem is with MTN wen i am outside it works perfectly but wen am inside my house MTN network is very bad and it is happening to dis my fone only plzz wat can i do?
Tanx in advance

You Already know your room and mtn dey fight

The phone isn't the problem maybe u should change sim

lolz tankz bro
bt d funniest tin is dat if i put dat same mtn sim in anoda fone it works in dat same room