why! N240JU Hard disk replacement (mass storage)

Start by unlocking the right locking latch.

Then, by simultaneously unlocking the left latch, lift the battery out of its socket.

Begin by spotting the dummy memory card.

Then, remove it and put it on your workplan.

Locate the 15 screws that hold the bottom cover of the device in place.

Unscrew them and place them on your work surface.

Then, un-clip the bottom cover, starting with the side shown in the third picture.

Locate the hard drive in its location.

Lift it slightly.

Finally remove it from its SATA connector.