"I am looking for lid switch symptoms for lcd that looks like a bad backlight"...

Can you see an image at all on the LCD panel using a flashlight?

I know this is an old thread but thank you so much! I created an account just to thank you. My laptop died-wouldn't turn on, changed the battery. Nothing. I googled it and your tip is what did the trick. I was getting ready to shop around for a new laptop (probably more so because I wanted one anyway) but needed the files off of it either way. Thanks again!