HP Engage Go 13.5 Maintenance and Service Guide - Page 45

WWAN module

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1. Prepare the computer for disassembly (see Preparation for disassembly on page 31). 2. Remove the display assembly (see Display assembly on page 31). 3. Disconnect the battery cable from the system board (see Battery on page 32). 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 31). 2. Remove the display assembly (see Display assembly on page 31). 3. Disconnect the battery cable from the system board (see Battery on page 32). Remove the WWAN module: 1. Disconnect the WWAN antenna cables (1) from the terminals on the WWAN module. 38 Chapter 5 Removal and replacement procedures

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1.
Prepare the computer for disassembly (see
Preparation for disassembly
on page
31
).
2.
Remove the display assembly (see
Display assembly
on page
31
).
3.
Disconnect the battery cable from the system board (see
Battery
on page
32
).
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
31
).
2.
Remove the display assembly (see
Display assembly
on page
31
).
3.
Disconnect the battery cable from the system board (see
Battery
on page
32
).
Remove the WWAN module:
1.
Disconnect the WWAN antenna cables
(1)
from the terminals on the WWAN module.
38
Chapter 5
Removal and replacement procedures