Thanks for your kind help guys. I have already paid Bitmain to send it back to me. Now I will follow your advice and send it to someone who can fix it.
I am just disappointed with Bitmain.
I wouldn't be disappointed. After all they don't care about single costumers. They only care about the big fish. Of course they don't want to spend money with your single miner... That's how big companies will always work. No surprise here!
This way of dealing with costumers is kind of a way for them to sell more miners and to get more money out of small costumers, in my view!
Why don't they have repairing centres all over the world? Why don't they have resellers? This is just to benefit big players imo...