Figure 6. Unlocking the front door
b) Ensure that you have the electrostatic discharge (ESD) wrist strap on and that the ESD clip is plugged
into a ground jack or connected to an unpainted metal surface. If not, do so now.
c) Twist the cover latch to the left (counterclockwise) to unlock the cover as shown in Figure 7 on page
22.
Vertical is locked; horizontal is unlocked.
Common procedures for installable features 21