WWAN or GPS module
IMPORTANT: Make special note of each screw size and location during removal and replacement.
Description Spare part number
WWAN module (select products only)
Foxconn HP lt4120 LTE/EVDO/HPSA+ with GPS M.2 with antennas 922446-001
Fibocom HP hs3210 WW HSPA+ without GPS +M.2 with antennas 922445-001
Huawei HP It4132, LTE/HSPA+ 4G with GPS M.2 with antennas 922444-001
GPS module, u-blox EVA-M8M M.2/USB WW 918905-001
Before removing the WWAN or GPS module, follow these steps:
1. Turn o the computer. If you are unsure whether the computer is o or in Hibernation, turn
the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the following components:
a. Keyboard (select products only) (see Keyboard (select products only) on page 31)
b. Micro SIM card tray (see Micro SIM card tray on page 32)
c. MicroSD card tray (see MicroSD memory card tray on page 33)
d. Rear cover (see Rear cover on page 34)
e. Disconnect the battery (see Disconnecting the battery on page 35)
Remove the WWAN or GPS module:
NOTE: Before removing the WWAN or GPS module, note which antennas is AUX and which is MAIN. These
connectors are not always located on the same side of a module; they can vary depending upon the supplier.
When you replace the module, the MAIN antenna should be attached to the connector marked MAIN and the
AUX antenna should be attached to the connector marked AUX.
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Disconnect the 2 antenna cables (1), remove 1 Phillips M2.0x2.0 screw (2), and then remove the module
(3).
NOTE: The GPS module will be connected to the WWAN AUX antenna cable only.
Component replacement procedures 41
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