WWAN module (select models only)
The WWAN module is available on select models only.
Description Spare part number
WWAN module, HP LT4210 LTE/HSPA+ with GPS (includes gasket and Mylar screw/POGO cover) L15398-005
WWAN connector gasket (includes WWAN connector gasket and Mylar screw/POGO cover) L14792-001
Before removing the WWAN module, follow these steps:
1. Shut down the tablet. If you are unsure whether the tablet is o or in Hibernation, turn the tablet on,
and then shut it down through the operating system.
2. Disconnect all external devices connected to the tablet.
3. Disconnect the power from the tablet by rst unplugging the power cord from the AC outlet, and then
unplugging the AC adapter from the tablet.
4. Remove the display panel assembly (see Display assembly on page 32).
5. Remove the Mylar shield (see Mylar shield (WWAN models only) on page 37).
6. Disconnect the battery cable from the system board (see Battery on page 40).
Remove the WWAN module:
1. Remove the gasket from of top of the WWAN module (1).
2. Disconnect the WWAN antenna cables (2) 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.
3. Remove the Phillips M2.0×2.0 screw (3) that secures the WWAN module to the computer. (The edge of
the module opposite the slot rises away from the computer.)
44 Chapter 5 Removal and replacement procedures for Authorized Service Provider parts
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