b. Insert the new slim optical drive into the kit until you hear a click. The slim optical drive is secured inplace.Figure 34. Installing the slim optical drive into the kit5. Slide the kit into the flex bay and reconnect the cables.What to do next:• To work with another piece of hardware, go to the appropriate section.• To complete the installation or replacement, go to “Completing the parts replacement” on page 220.3.5-inch storage driveTo remove or install a 3.5-inch storage drive, do the following:1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 103.2. Ensure that all the cables are disconnected from the kit. Remove the kit from the front of the computer.See “Device in the flex bay” on page 105.3. Press the clip as shown to open the rear cover of the kit.Figure 35. Opening the rear cover of the kit116 P720 Hardware Maintenance Manual