Step 1 Battery. Put on an anti-static wrist band, attaching the end onto a large piece of metal. Make sure the laptop is unplugged from its charging cord. Flip the laptop over to view the underside. Slide the right battery lock/unlock button to unlock, sliding the tab outward to unlock. At the same time, slide the left tab outwards while
STEP 2. Slide the hard drive assembly to the left and disconnect it from the motherboard. Lift up and remove the hard drive assembly. If you are replacing or upgrading the HDD, you’ll have to transfer the mounting bracket to the new one. Acer Aspire 5520 uses a regular 2.5″ SATA HDD. STEP 3.
Open the lid othe the netbook. Use the Jimmy from the upper left corner of the keyboard. Put it between the keyboard and th casing and move it to the right. It might help to use a metal spudger to push in the pins holding the keyboard in place. Then move down along the sides where there is one pin on each side.http://www.daytoncomputerstore.com How to replace a hard drive in a Acer Aspire One Model 722 Laptop Repair, brought to you by the Dayton Computer Store loc ArUvyI.