Lenovo ThinkPad Edge E420 Hardware Maintenance Manual page 89

Table 27. Removal steps of base cover assembly (continued)
Step Screw (quantity)
2
M2.5 × 6 mm, wafer-head, nylon-coated (2)
Applying labels to the base cover
The new base cover FRU is shipped with a kit containing labels of several kinds.
If the Windows Authentication label (COA)
label attached to the customer, or provide a letter to the customer stating what the label was originally on the
system and what the label part number, serial number, and product key were.
When you replace the base cover, apply the following labels:
4
Battery word label
19
Serial number label
Following labels need to be peeled off from the old base cover, and need to be put on the new base cover.
2
SIM label
3
China Telecom label
5
Onboard LAN MAC address label or Ethernet label
6
IMEI label
7
Brazil Anatel Bluetooth label
1 is attached to a part that is replaced, return the old part with the
18
FCC label
20
Homologation label
12
Brazil wireless card label
13
SIRIM label or Indonesia postel label
14
China 3G Logo wireless WAN label
15
SIM ICCID label
16
Taiwan wireless WAN label
Color Torque
Black 0.392 Nm
(4 kgfcm)
.
Chapter 8 Removing and replacing a FRU
83