HP ProBook 640 G2 Maintenance And Service Manual page 53

Description
T77W595 LTE M.2 w/GPS
Huawei Wrangler MU736 HSPA+ w/GPS M.2
IMPORTANT: Make special note of each screw and screw lock size and location during removal and
replacement
Before removing the WWAN module, follow these steps:
1. Shut down the computer.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then
unplugging the AC adapter from the computer.
4. Remove the following components:
a. Service door (see
b. Remove the battery (see
c. Hard drive (see
d. Solid state drive (see
Remove the WWAN module:
1. Disconnect the two cables (1).
Service door on page 37).
Battery on page
Hard drive on page 39).
Solid-state drive (select products only) on page
38)
Component replacement procedures
Spare part number
800870-001
793516-001
41).
43