[Q] Problems with dual sim... topic

Hello! I have a problem, so I need you help me to kill it. I installed CM 12.0 in my I-9082, but now my phone can't recognize my two simcards. If I put one simcard, my phone works normally, but if I put the two simcards, appears a message: "Cellular network not avalaible". The signal of the simcards is not continue, it looks intermittent. So, I can't use my phone to call or to connect to mobile data. Can you help me? I hope this problem have a good solution. Excuse me for my bad English. Greetings from Colombia!