U41-70 laptop flashing screen white/black

my screen on my laptop u41-70 flashes black when the screen up and down moving (no problem while the screen is stable, but want to solve the problem before he gets really bad)

Leif, Norway

Good day and welcome to the community.

Your description looks like a video cable that is loose or damaged. If your machine is under warranty, I suggest that you contact the Service (info below) to discuss.

For reference, here's the manual of your equipment: https://download.lenovo.com/consumer/mobiles_pub/lenovo_s41-35_s41-70_s41-75_u41-70_hmm_201503.pdf if you do not see what he is to say - and re-Assembly.

I hope this helps a little.

Kind regards.

Tags: Lenovo Notebooks

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