But the oven method will fix other solder problems.

Or you can use a heat gun directly on the video card instructional videos for that on you tube also. Its called (Reflow soldering) oven baking technique. researched it for about 2 months before I did it and it will not harm any components if you don't go over 10 minutes of continuous heat. Next, choose the time for keyboard backlight’s auto shutdown. Enable Keyboard lighting and select the brightness you want. Click on the tab to access additional options. Move the slider under the Keyboard backlight tab to the right to enable the backlight. Worked like a charm, I got the idea from a video on you-tube. Open the Windows Mobility Center, and you will see a few options. I will hardly purchase a laptop unless it has a backlit keyboard, they are SO nice for night time or other low-light environments. My previous Dell M4400 had a nice one and now my Dell M6500 (pictured has one too). I took the laptop apart removed the mother board and everything connected to it, preheated the oven to 395 degrees fahrenheit about 200 degrees celsius placed the motherboard in the oven rack on a sheet of aluminum foil for 8 minutes, turned off the oven left it in for 1 more minute then left the oven door open for 5 minutes took it out and let it cool down. Backlit keyboards are one of my favorite options on Dell laptops. what I did was check all the display harnesses connected it to an external monitor it did boot up and got a lot of lines small rectangles (matrix lines) and then low res problem. Restart your graphics drivers Force shut down your laptop Boot into Safe Mode Update your graphics driver Restart your explorer.exe process Repair your PC. I had the same problem, stored my laptop for 4 months.

Dell laptop backlight not working