Now that you have removed all the screws, you are ready to remove and then replace your new 15-3000 (Backlit) laptop keyboard. Congratulations! Secure the 15-3000 (Backlit) keyboard cable. Laptop Keyboard for Dell InspiSeries 3541 3542 US backlit by E-REPAIR. Your Dell InspiSeries 15-3000 (Backlit) is in stock, and will ship out the same day that the order is received. Dell laptops are quite popular because of its unique functionalities. If you see any screw holes, you will have a good idea of where to place the screws back in at the bottom of your Dell InspiSeries 15-3000 (Backlit) laptop.