How to replace the WWAN Card 4G on a Dell Pro 13 Plus PB13250 U Series
Published April 01, 2026
This 3D experience gives you the step by step process of replacing the WWAN Card 4G and a Dell Pro 13 Plus PB13250 U Series. The procedure will also include removing the Base Cover and reinstalling them.
Removal
Base Cover
Identify the base cover highlighted in blue.
Loosen the captive screws that secure the base cover to the palm rest assembly.
Using a plastic scribe, pry open the base cover from the recesses that are located in the U-shaped indents at the top edge of the base cover near the hinges.
Lift the base cover off the palm rest assembly.
Identify the base cover location highlighted in blue.
Align the base cover with the screw holes, place the base cover on the palm rest assembly, and snap into place.
Tighten the captive screws to secure the base cover to the palm rest assembly.
WWAN Card 4G
Identify the 4G WWAN card highlighted in blue.
Lift the shield off the 4G WWAN card.
Remove the screw that secures the WWAN bracket to the system.
Lift the WWAN card bracket from the WWAN card.
Disconnect the antenna cables from the 4G WWAN card.
Slide and lift the 4G WWAN card off the I/O board.
Identify the 4G WWAN card location highlighted in blue.
Slide and install the 4G WWAN card into the slot on the I/O board.
Connect the black cable to the ANT3 D/G.
Connect the white cable to the ANT0 M.
Align and place the WWAN card bracket on the WWAN card.
Install the screw that secures the WWAN bracket to the system.
Place the shield over the 4G WWAN card and secure it in place.
Install
WWAN Card 4G
Identify the solid state drive (SSD) location highlighted in blue.
Align the notch with the tab and slide the SSD into the slot on the system board.
Install the screw that secures the SSD to the system board.
Place the bracket into the SSD slot on the system board.
Install the screws that secure the SSD bracket to the system board.
Base Cover
Identify the battery cable location highlighted in blue.