Top Cover With Keyboard - HP ProBook 450 G8 Maintenance And Service Manual

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 off 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 first 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
Top cover with keyboard, not backlit
Top cover with keyboard, backlit, for use in privacy models
Top cover with keyboard, backlit
Table 5-17 Spare part country codes
For use in country or
region
Belgium
Brazil
Spare part For use in country or
number region
-A41 Hungary
-201 Iceland
Spare part For use in country or
number region
-211 Saudi Arabia
-DD1 Slovenia
Component replacement procedures
Spare part number
M21740-xx1
M21741-xx1
M21742-xx1
Spare part
number
-171
-BA1
57