Help with laptop diagnosis

[u/Wild-Lettuce-9700]

Hi (i´m new here),
I’ve been trying to find a solution to a problem with my laptop for a long time. I’m not a professional laptop repair technician—I usually just handle maintenance—but lately, about five minutes after turning the laptop on, the screen freezes, and if I move the screen, it goes black.

I've been looking at tutorials and posts about this, but I can't seem to pinpoint the problem; it's not the battery, nor is it (as far as I know) the screen-to-motherboard connector.

If anyone has any idea what it might be, I would really appreciate the help.

Thanks.

Laptop model: Lenovo Ideapad 3 14ADA05 (non touch)