Dell Inspiron 15-3521 Hard Drive Replacement

Flip the laptop over.

Slide the latches toward the outside of the laptop to unlock the battery.

Lift the battery out of the laptop.

Loosen the two screws attaching the access door to the laptop body.

Using a spudger, pry open the access door from the laptop.

Using your fingers, open and remove the access door from the laptop, exposing the memory cards underneath.

Locate the two hard drive screws, located on the left-hand side of the hard drive casing.

Loosen and remove these screws using a phillips head screw driver PH0.

Push the hard drive to the left, and then lift out of the laptop casing to remove from laptop.

Identify the Hard Drive caddy screws, one on each side of the hard drive casing.

Remove these screws using a phillips head PH0 screwdriver.

Now, with a new hard drive, attach the caddy/casing using the same screws removed from the old hard drive.