Share your experience!
Since I bought the microphone it works only occasionally and I do not accept the warranty
I've edited your post as this is an English only forum, you can use Google Translate to reply and/or post.
I'm sorry to hear about your issue, but this is a global user based forum, you have to contact your Local support to get it inspected and repaired.
Could you tell us why it wasn't repaired under its warranty?