Acer Aspire 5740-5780 WLAN Module Replacement

Turn the laptop off and remove the power cord.

Press in the SD Card or the SD Card Dummy if no SD Card is there. Remove card when it pops out.

Flip the laptop over on its face, so that the back is showing.

Put grounding strap on one of your wrists and attach the other end to a large metal object (recommended method).

If you don't have a grounding strap an alternative approach is to touch a metal object that is either large or connected to the earth. Then avoid doing things that would accumulate static electricity on your body.

Unlock the battery by flipping a switch near the release latch.

Slide the release latch to the left to release the battery from the PC.

Use your hands to pry the battery free of the computer.

Unscrew the 2 captive screws and 3 M2.5 x L8 screws holding back cover in place.

Use spudger to pry open the back panel.

Then lift panel off of the computer.

Remove the one M2 x L4 screw that secures the hard drive in place.

Using an opening tool or your hands, slide the hard drive out of its connector.

Lift the hard drive out of the computer.

Disconnect the black and white antenna cables from the module.

Remove one M2 x L4 screw, which is securing the WLAN Module.

Carefully remove the module from the system, using plastic opening tools.