Dell PowerEdge 4220 Guide D'installation page 23

Figure 1-10. Reversing the Front Door Lock Catch
1 lock catch
8 Reverse the badge on the front door.
Open the front door.
a
From inside the door, insert a flat-head screwdriver into the badge
b
release notch (see Figure 1-11).
2 screws
Installation Guide
1
2
21