A SERVICE OF

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3.
Remove the fan (3).
Reverse this procedure to install the fan.
WWAN module
NOTE: The WWAN module and the WLAN module are not interchangeable.
Description Spare part number
HP lt2523 LTE/HSPA+ Mobile Broadband Module 675793-001
HP lt2522 LTE/EV-DO Mobile Broadband Module 675791-001
HP un2430 EV-DO/HSPA Mobile Broadband Module 634400-001
HP hs2350 HSPA+ Mobile Broadband Module 668969-001
Before removing the WWAN module, follow these steps:
1. Turn off 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 the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
Component replacement procedures
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