HP EliteBook Folio 9480m Maintenance and Service Guide - Page 53
WWAN module, from the terminals on the WWAN module.
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WWAN module NOTE: The WWAN module and the WLAN module are not interchangeable. Description HP lt4112 LTE/HSPA+ Mobile Broadband Module HP lt4211 LTE/EV-DO/HSPA+ Gobi 4G Module HP hs3110 HSPA+ Mobile Broadband Module Spare part number 740011-001 793116-001 822828-001 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. 4. Remove the battery (see Battery on page 29). 5. Remove the hard drive cover (see Hard drive cover on page 32). 6. Remove the service cover (see Service cover on page 38). 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 two Phillips PM2.0×3.0 screws (2) that secure the WWAN module to the system board. (The WWAN module tilts up.) Component replacement procedures 41