Why there is noise when adjusting the screen brightness? As the screen brightness adjusting is achieved by changing the screen size of the coil current. It is a normal physical phenomena the coil current changes in electricity eventually lead to the coil make voice. Because of the sensitivity of the human ear and different coil [...]

How to restore the dark screen to bright? Lamps have already gone out if you confirm that the screen is brightest and still evident dark than before when used in AC power supply. You must replace the corresponding models of lamp.

I always pull the battery before I work on any laptop or notebook. The last thing you need is for your Dell to power up while you’re taking it apart. I’m taking apart this Dell Latitude for the sake of illustrating an example, but it’s not something you normally want to undertake without first troubleshooting [...]

Before you start working on any laptop or notebook computer, remove the battery. It’s just too easy to accidentally power up a laptop when you’re working on it, and that could easily spell disaster, even if you don’t panic. The first part of the puzzle when you repair a laptop screen is to determine what [...]