23.
If you need to remove the second ambient light sensor cables, disconnect the cable from the ZIF
connectors on the second ambient light sensor (1) and hub board (2), and then peel the cables off the
inside of the display back cover to remove them (3).
The second ambient light sensor cable is available in the Cable Kit as spare part number M05255-001.
Display back covers are available as the following spare part numbers:
M05254-001: Models with 250 nit, Touch-on Panel (TOP)
M14250-001: Models with 400 nit panel, without WWAN
M14251-001: Models with 400 nit FHD panel, with WWAN
M14252-001: Models with 400 nit UHD panel, without WWAN
24.
Use the following illustration to determine proper cable routing. The WWAN antenna cables and display
cable route through the right hinge (1). The WLAN antenna cables and display cable route through the
left hinge (2).
Component replacement procedures
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