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Well, it really sounds like an empty battery. Please, charge it for a longer time (read: some _hours_).
As long as the device is absolutely dead, not even responding to the power switch, your only hope is that it's an empty battery.
Note that we're not professionals. We're enthusiasts and advanced amateurs. You can be, too! But it will take time, slowly taking step by step. Also, please work on your problem description. Don't fear for language problems, in most cases we can work out what you mean. But tell us enough. Also, we're all volunteers. Solving problems in the way of this post will burn out motivation. Be self-confident: Other people who didn't have too much in-depth knowledge were at that point before. They managed to fix their device by staying calm, reading carefully and following instructions step after step.
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