Learn how to replace the wireless card on Inspiron 14 7440 2-in-1. This video shows how to remove and install the wireless card on Inspiron 14 7440 2-in-1. Before you begin, power off the computer, and disconnect all the attached peripherals. Ensure that you always use ESD protection when working inside the system.
In this video we show you how to replace the wireless card in an Inspiron 14 7440 2-in-1 Before you begin, read through and follow the safety guidelines in the owners manual to protect your system from potential damage and ensure your personal safety. Turn off the computer and disconnect all the attached peripherals and enter service mode.
To enter Service Mode, press and hold the B key on the keyboard, and then press the power button. The computer will boot up and the Owner Tag information is displayed on the screen. Press any key to proceed, the computer will emit three short beeps and shut down.
To begin, loosen the three captive screws. Then, remove the remaining four screws that secure the base cover to the palm-rest and keyboard assembly. Using a plastic scribe, pry the base cover from the top left at the hinge, and then continue to work on the sides to open the base cover. Slide and lift the base cover off the palm-rest and keyboard assembly. Remove the screw that secures the wireless-card bracket to the wireless card. Lift the bracket off the card. Disconnect the antenna cables from the card. Then slide and lift it off the system board.
To install the wireless card, connect the white antenna cable to the main connector marked with a white triangle. Similarly, connect the black antenna cable to the auxiliary connector marked with a black triangle. Align it on the system board and then, slide the card at an angle into the slot.
Align and place the wireless-card bracket on the card. and then replace the screw that secures it to the card. Place and snap the base cover onto the palm-rest and keyboard assembly Replace the fours screws that secure the base cover to the palm-rest and keyboard assembly and then, tighten the three captive screws on the base cover. Finally, connect the power adapter and press the power button to turn on the computer and exit from Service Mode.
NOTE: The computer will only turn on if the power adapter is connected. If you need more information or assistance for the Inspiron 14 7440 2-in-1, go to Dell.com/Support.
