What if OPPO's MP4 doesn't work?

Hello, I'm very sorry. I can't see the real situation of your machine at present. Could your mobile phone be caused by low battery power? Please try to charge it for an hour before turning it on. If not, I suggest you go to the local OPPO after-sales service center and let the staff check and handle it. After-sales will be properly handled for you. Please rest assured, thank you.