HP ENVY TouchSmart 14-k020us HP Envy 14 Sleekbook - Maintenance and Service Gu - Page 53

WWAN module

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3. Remove the WLAN module by pulling the module away from the slot at an angle (3). NOTE: If the WLAN antennas are not connected to the terminals on the WLAN module, the protective sleeves must be installed on the antenna connectors. WWAN module Description HP hs3114 HSPA+ Mobile Broadband Module Spare part number 723896-001 CAUTION: The WWAN module and the WLAN module are not interchangeable. To prevent an unresponsive system, replace the wireless module only with a wireless module authorized for use in the computer by the governmental agency that regulates wireless devices in your country or region. If you replace the module and then receive a warning message, remove the module to restore device functionality, and then contact technical support. Before removing the WWAN module, follow these steps: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the service cover (see Service cover on page 37). 5. Disconnect the battery cable (see Battery on page 39). Component replacement procedures 45

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3.
Remove the WLAN module by pulling the module away from the slot at an angle
(3)
.
NOTE:
If the WLAN antennas are not connected to the terminals on the WLAN module, the protective
sleeves must be installed on the antenna connectors.
WWAN module
Description
Spare part number
HP hs3114 HSPA+ Mobile Broadband Module
723896-001
CAUTION:
The WWAN module and the WLAN module are not interchangeable.
To prevent an unresponsive system, replace the wireless module only with a wireless module authorized
for use in the computer by the governmental agency that regulates wireless devices in your country or
region. If you replace the module and then receive a warning message, remove the module to restore
device functionality, and then contact technical support.
Before removing the WWAN module, follow these steps:
1.
Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2.
Disconnect all external devices connected to the computer.
3.
Disconnect the power from the computer by first unplugging the power cord from the AC outlet
and then unplugging the AC adapter from the computer.
4.
Remove the service cover (see
Service cover
on page
37
).
5.
Disconnect the battery cable (see
Battery
on page
39
).
Component replacement procedures
45