HP Pro x2 612 G1 - Maintenance and Service Guide

WWAN module
Description Spare part number
HP hs3110 HSPA+ Mobile Broadband Module 748599-005
HP lt4112 LTE/HPSA+ Mobile Broadband Module 740011-005
HP lt4211 LTE/EV-DO/HSPA+ Gobi 4G Module 748021-005
Before removing the WWAN module, follow these steps:
1. Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on, and
then shut it down through the operating system.
2. Disconnect the power from the tablet by unplugging the power cord from the tablet.
3. Disconnect all external devices from the tablet.
4. Remove the back cover (see
Back cover on page 39).
5. Disconnect the tablet battery cable from the system board (see
Tablet battery on page 44).
Remove the WWAN module:
1. Disconnect the WWAN antenna cables (1) from the terminals on the WLAN 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 PM1.9×2.5 broad head screw (2) that secures the WWAN module to the system
board. (The WWAN module tilts up.)
Tablet replacement procedures 49