pls nairalanders, y'all have to help me out.. my SIM 1 slot is really having network issues, the first SIM is for 4G LTE, 3G, 2G connection while the second SIM is for 3g & 2g network. so recently I used ntel 4g SIM on it to surf the net but I was unable to use it so I reverted back to my Airtel 3g line which is in the SIM slot 1 but I have been unable to receive network on it for up to a week and I have been using the second Sim for calls n data...pls i need help to fix the SIM 1 slot.