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Hello I have y50-70 lenovo laptop Today when I started the laptop the screen started white then it started to get colors like rainbow like the white color fading slowely and getting these rainbow colors When I move the laptop lid to a certain degree the screen is normal but after a while it comes back again and I need to move it to get it working , I suspected a loose screen cable and I replaced it but the problem stills there , and when the screen goes like this It doesn’t respond, I mean it’s not just colored screen it’s colored + unresponsive , I tried an external display and it works fine so I don’t think it’s the graphic driver . Help please ! Would faulty lcd panel or inverter give symptoms like this ? How screen looks like
Haven’t worked on your model, but I would say it is an issue with the LCD. With the MacBook Pro 13, a lot have the same issue. A lot of people think it is the LCD cable (since it sometimes works when moved at certain angles), sometimes it is the cable, but if it fades it is usually the LCD. You can test this by removing the LCD and flexing the attached PCB/ribbon. If it cuts in and out, you know it is the LCD. EDIT: For clarification, see picture of the part attached to your LCD, which should be causing the problem (looks very similar to the MacBook A1278 LCDs with this problem). Under the tape, there is a board and a ribbon attached to the board, flexing the bottom area should present the issue. The whole LCD will need to be replaced if that’s the case.
Mazen before going to the expense of a screen buy a new cable . I have worked on this laptop and have found that the issue is usually the cable it pinches at the hinge . you wont see any physical damage but its there . If after replacing the cable you have no Joy then look at the display or at the board. be mindful of the speakers when you reinstall ,the connectors for the speakers are easily forgotten . The cables can be found on ebay or amazon . Hope this helps
