IdeaPad P400 - display does not work.

Hello, I have a P400 Ideapad, display is not working properly, it will stay black. But if I move the screen forward or backward, it works again, as if she had a bad connection.

Especially if I'm pushing on a corner of the laptop, it works perfectly.
Can you help me please? What can be?
Thank you in advance!

Finally I took it for repair, he was be a defective screen, got a new.

Tags: Lenovo Notebooks

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