HP Engage Go 10 Maintenance and Service Guide - Page 36

WWAN module

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1. Prepare the computer for disassembly (see Preparation for disassembly on page 21). 2. Remove the display assembly (see Display assembly on page 21). 3. Disconnect the battery cable from the system board (see Battery on page 23). Remove the volume board and buttons: 1. Disconnect the cable from the reverse ZIF connector on the system board (1). 2. Use a flat tool to release and remove the board from between the side of the computer and the system board (2). 3. Use tweezers to grasp and lift the power buttons out of the computer (3). To install the volume board and buttons, reverse the removal procedure. WWAN module To remove the WWAN module, use this procedure and illustration. IMPORTANT: To prevent an unresponsive system, replace the wireless module only with a wireless module authorized for use in the computer by the governmental agency that regulates wireless devices in your country or region. If you replace the module and then receive a warning message, remove the module to restore device functionality, and then contact technical support. Before removing the WWAN module, follow these steps: 1. Prepare the computer for disassembly (see Preparation for disassembly on page 21). 2. Remove the display assembly (see Display assembly on page 21). 3. Disconnect the battery cable from the system board (see Battery on page 23). Remove the WWAN module: 1. Disconnect the WWAN antenna cables (1) from the terminals on the WWAN module. 2. Remove the Phillips M2.0 × 2.0 screw (2) that secures the WWAN module to the bottom cover. (The WWAN module tilts up.) 28 Chapter 4 Removal and replacement procedures

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1.
Prepare the computer for disassembly (see
Preparation for disassembly
on page
21
).
2.
Remove the display assembly (see
Display assembly
on page
21
).
3.
Disconnect the battery cable from the system board (see
Battery
on page
23
).
Remove the volume board and buttons:
1.
Disconnect the cable from the reverse ZIF connector on the system board
(1)
.
2.
Use a flat tool to release and remove the board from between the side of the computer and the system
board
(2)
.
3.
Use tweezers to grasp and lift the power buttons out of the computer
(3)
.
To install the volume board and buttons, reverse the removal procedure.
WWAN module
To remove the WWAN module, use this procedure and illustration.
IMPORTANT:
To prevent an unresponsive system, replace the wireless module only with a wireless module
authorized for use in the computer by the governmental agency that regulates wireless devices in your
country or region. If you replace the module and then receive a warning message, remove the module to
restore device functionality, and then contact technical support.
Before removing the WWAN module, follow these steps:
1.
Prepare the computer for disassembly (see
Preparation for disassembly
on page
21
).
2.
Remove the display assembly (see
Display assembly
on page
21
).
3.
Disconnect the battery cable from the system board (see
Battery
on page
23
).
Remove the WWAN module:
1.
Disconnect the WWAN antenna cables
(1)
from the terminals on the WWAN module.
2.
Remove the Phillips M2.0 × 2.0 screw
(2)
that secures the WWAN module to the bottom cover. (The
WWAN module tilts up.)
28
Chapter 4
Removal and replacement procedures