So I have an iPhone 6s and randomly, it'll just start flickering to a black screen. Sometimes there are lines running down the phone and you can see some the home page and sometimes it just goes to completely black. I've dropped my phone many times and I think it might be because of that? I end up having to shut down my phone in order for it to start working properly. This happens at least 2 times a day. What should I do?
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