Navigating your way around all of the menus and features on your Dell Inspiron 1525 laptop is done via the touchpad (trackpad) just under the keyboard on the main body of the computer. Needless to say, this touchpad is one of the most important components on your laptop, and if it breaks or becomes damaged it could be devastating for your computer as a whole. And unfortunately, there's no way to "fix" a damaged touchpad except to replace it. The good news is that if you need to replace a damaged touchpad on your Inspiron, you can do it yourself without the help of a service technician.
Turn your Inspiron 1525 off and remove any power cables that are connected to the device. Close the computer, turn it over and slide the battery lock button down to release the rectangular battery from its compartment on the underside of the computer.
Turn your laptop right-side up and open the computer so the monitor is facing you. Insert the tip of your flathead screwdriver in the seam between the plastic keyboard guard and the side of the computer. The keyboard guard is located just above the keyboard.
Pry up on the guard until it pops out of place. Be sure to do this gently, as you do not want to damage the guard. Remove the guard from the computer and set it aside. The two keyboard screws will now be visible underneath where the guard used to sit.
Use your Phillips screwdriver to remove the two keyboard screws and use the tips of your fingers to lift the keyboard up from the top. Place the keyboard facedown over the touchpad and locate the thick connector ribbon that runs from the motherboard inside the computer to the back of the keyboard. Use your fingers to gently unplug the ribbon from the back of the keyboard and set it aside.
Insert the tip of your screwdriver in the seam at the bottom of where the keyboard used to rest and gently pry it up. This will release the top plastic frame from the Inspiron, revealing all of the broken touchpad.
Use your fingers to disconnect the thick ribbon from the side of the damaged touchpad and slide the touchpad out of the Inspiron. Slide the new Touchpad (available from your Dell retailer or online) in its place, fit the top frame in place and reassemble the computer in the reverse order you took it apart in.