Lenovo ThinkPad T420si Hardware Maintenance Manual page 104

Applying labels to the base cover:
The new base cover FRU is shipped with a kit containing labels of several kinds.
The following illustration shows the location of each label.
Note: If the Windows Certificate of Authentication label (COA)
return the old part with the 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:
18
FCC Label
20
Serial number label
21
Homologation label
The following labels need to be peeled off from the old base cover, and need to be put on the new base cover.
1
SIM ICCID label
2
Brazil wireless card label
3 Brazil WWAN label
4
Brazil Bluetooth label
5
SIRIM label or Indornesia Postel label
6
China WWAN label
7 Non-encryption label or Indonesia rating label
8
China 3G WWAN label
9
Israel label
10
Wireless label for special bid
11
Asset tag
12
Ericsson WWAN label
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is attached to a part that is replaced,