Very soon we will be removing the screen from the rest of the laptop. But first, we need to disconnect all the wires running between the two. In all laptop models, including the Inspiron 1501 we are using as our example, a thick black cable connects the screen to the motherboard. This is the cable that sends power and data to the LCD screen. Most of the time (but now always) a small silver screw with a wire attached to it will be connected to this cable. This is a grounding screw, and it needs to be disconnected before we can unplug the cable. After the screw is out, simply grab the plug by the blue tab and pull upwards to disconnect it.
In almost all cases, there are two thin wires - one white and one black, also running from the screen to the rest of the laptop . (Very rarely there will be four wires, one white, one black, and two varying shades of gray). These wires go to the wireless card(s). If the wireless card was installed under the "C" panel on the bottom of the laptop, all you have to do is carefully feed these wires through to the other side. In our example, however, the wireless card is instead installed under the keyboard, shown in the image on the right.
To remove these wires, as shown on the right, simply use your fingers or another tool to lift them off of the copper plugs. Later, when you are reconnecting them, all you have to do is position the connectors over the plugs and push down 'til they snap into place. Which wire goes where is marked by white and black triangles.
You'll also notice in this image that there is another plug running from the screen area to the motherboard. You may or may not find something similar on your model Dell laptop as is here in the Inspiron 1501. If present, this or similar plugs need to be carefully unplugged. Using a flathead screwdriver to gently lift each edge a little at a time is the safest method.
After all this is done, you're ready to move to the next step: Unscrewing and removing the screen!