It's an HP 2000 Notebook bought around 2014. I have another HP 255 G6 of 2017, which have the same screen size. If it also has the same plugs perhaps I should try to put the screen of the g6 to the 2000 to rule out the screen or find the problem.The problem is that the g6 works fine and I may mess up with it... those machines are not worth to pay technician if i cant fix it my self then it goes for recyclingSo far there has been no discussion about the hardware. Yes, it's an old laptop. But what is old? And what specific laptop?
Some people consider 5 years to be "old", other 15 years. Not all laptops are built with replaceable components, some are. It wouldn't hurt to know, and to check it out. A motherboard replacement may be too much, but some component or cable might be worth it.