HP ProBook 450 G5, Руководство по техническому обслуживанию и ремонту

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WWAN module
NOTE: The WWAN module and the WLAN module are not interchangeable.
Description Spare part number
Huawei HP It4132, LTE/HSPA+ w/GPS M.2 845710-002
Fibocom CAT9: Foxconn lt4210 LTE/HSPA+ w/GPS 917823-001
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. Place the computer in “Battery Safe mode” ( Battery Safe mode on page 34 ).
3. Disconnect all external devices connected to the computer.
4. 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.
5. Remove the main service door ( Service doors on page 35 ).
Remove the WWAN module:
1. Disconnect the WWAN antenna cables (1) from the terminals on the WWAN module.
NOTE: The red WWAN antenna cable is connected to the WWAN module “Main” terminal. The blue
WWAN antenna cable is connected to the WWAN module “Aux” terminal.
2. Remove the Phillips M2.0×3.0 screw (2) that secures the WWAN module to the system board.
Component replacement procedures 41