I managed to buy an iPhone 7 however I still love my iPhone 6s. It's having a network issue from past two weeks. I tried the network reset even updated to ios 10 now and tried reset again but nothing works. But the WiFi works fine. when I tried contacting the service centre they said it was a water damage and that doesn't cover the warranty so that I need to pay one-third of the amount to make it work. But my phone never got submerged in the water. Please do suggest me something!