Wwan; Usb - HP ZBook 14u G6 Maintenance And Service Manual

Table 8-40 Issues, possible causes, and fixes (continued)
Items
The sections below are intended for authorized service providers/technicians.

WWAN

Table 8-41 Issues, possible causes, and fixes
Items
Symptom
Unable to find networks/service
The sections below are intended for authorized service providers/technicians.

USB

Table 8-42 Issues, possible causes, and fixes
Items
Symptoms
● USB devices are not recognized
USB devices are not charging
●
Examples of USB device Not Recognized
124 Chapter 8 Troubleshooting guide
Procedures
1. Verify that the wireless module and its antenna cables are fully inserted
and in good condition (see WLAN module removal and replacement
section). Reseat wireless module and antenna connection.
2. Verify module antenna cable connection are not loose.
3. Verify antenna cables are properly connected to the MAIN and AUX
terminals (see WLAN module removal and replacement section).
Procedures
Possible causes
Network source, cable, connection, driver, settings.
Troubleshooting steps
1. Update to the latest driver and utility.
2. Check with network service provider for signal coverage.
3. Make sure signal strength is good.
4. Make sure your service is active.
● Verify module and antenna cable connections are not loose.
Verify antenna cables are properly connected to the correct terminals. For example, the
●
antenna cable labeled "1" connects to the "Main" terminal labeled "1". The antenna cable
labeled "2" connects to the "Aux" terminal labeled "2".
Procedures
Possible causes
USB devices do not have the latest software drivers, port insufficient power, or not
compliant.
NOTE: USB Type-C uses a different connector entirely
Troubleshooting steps
1. Unplug USB device and/or restart the computer (wait for 2-5 minutes) to reset USB
port/hub in case of power surge.