16. If you need to remove the WWAN antennas and cables, disconnect the cable from the WWAN antenna
(1), remove the cables from the plastic clips and the clips on the inside of the display rear cover (2), and
then peel the antennas o the cover (3). The WWAN antennas and cables are available as spare part
number M21728-001.
The display rear covers are available as the following spare part numbers:
M21987-001: Models with a 250 nit panel, WLAN, no WWAN
M21988-001: Models with a 250 nit panel, WLAN, and WWAN
M21989-001: Models with a 400 nit panel, WLAN, no WWAN
Reverse this procedure to reassemble and replace the display assembly.
Top cover with keyboard
The top cover with keyboard remains after removing all other spare parts from the computer. In this section,
the rst table provides the main spare part number for the top cover/keyboards. The second table provides
the country codes.
Table
5-16 Top cover with keyboard descriptions and part numbers
Description Spare part number
Top cover with keyboard, not backlit M21740-xx1
Top cover with keyboard, backlit, for use in privacy models M21741-xx1
Top cover with keyboard, backlit M21742-xx1
Table 5-17 Spare part country codes
For use in country or
region
Spare part
number
For use in country or
region
Spare part
number
For use in country or
region
Spare part
number
Belgium -A41 Hungary -211 Saudi Arabia -171
Brazil -201 Iceland -DD1 Slovenia -BA1
Component replacement procedures 57
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