Laptop starts with completely white screen

Problem description:

The laptop starts but the screen is completely white.

Possible cause:

1. Video cable got disconnected from the LCD screen.
2. LCD screen failure.
3. Motherboard failure.

Possible troubleshooting steps and repair solution:

First of all, check out the video cable connection on the back of the LCD screen. It’s possible that overtime the video cable got loose and disconnected from the LCD screen. Reconnect the cable and test the laptop again.

Test your laptop with an external monitor. If video on the external monitor works fine but the laptop screen is white, most likely your problem is related to the LCD screen failure. Replace the screen with a new one.

If a new LCD screen doesn’t resolve the problem, most likely you have a faulty motherboard. You’ll have to replace the motherboard.