HP EliteBook 820 G1, HP EliteBook 725 G2, & EliteBook 720 G1 Notebook PCs - Maintenance and Service Guide

WWAN module
Description Spare part number
For use only on computer models equipped with an AMD processor:
HP hs3110 HSPA+ Mobile Broadband Module 748599-001
HP lt4112 LTE/HPSA+ Mobile Broadband Module 740011-001
HP lt4111 LTE/EV-DO/HSPA+ Mobile Broadband Module 748021-001
For use only on computer models equipped with an Intel processor:
HP hs3110 HSPA+ Mobile Broadband Module 723895-001
HP lt4226 LTE/HSPA+4G Module 736675-001
HP lt4225 LTE/EV-DO 4G Module 736676-001
HP lt4112 LTE/HSPA+ Mobile Broadband Module 704031-001
HP lt4111 LTE/EV-DO/HSPA+ Mobile Broadband Module 704030-001
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 service cover (see
Service cover on page 67).
5. Remove the battery (see
Battery on page 69).
Remove the WWAN module:
1. Disconnect the WWAN antenna cables (1) from the terminals on the WWAN module.
NOTE: The WWAN antenna cable labeled “5” connects to the WWAN module “Main” terminal labeled
“5”. The WWAN antenna cable labeled “6” connects to the WWAN module “Aux/GPS” terminal labeled
“6”.
2. Remove the Phillips PM2.0×2.5 screw (2) that secures the WWAN module to the system board. (The
WWAN module tilts up.)
74 Chapter 5 Removal and replacement procedures for Customer Self-Repair parts