My old Samsung galaxy S5 doesn't works well. The camera can't take photos any more. I don't know what's wrong with it. And I set again under the user manual, but still don't work. Can anybody give me some advice? If it can't be repaired, I am going to buy a new phone. So how about iPhone 6s and Samsung galaxy s6 edge? If anybody has used one of them, please give me some suggestion. I know little about mobile phones. If you are an expert, please compare the two phones and help me choose a most suitable one.