Maintenance and Service Guide
Table Of Contents
- Product description
- Components
- Illustrated parts catalog
- Removal and replacement procedures preliminary requirements
- Removal and replacement procedures for Customer Self-Repair parts
- Removal and replacement procedures for authorized service provider parts
- Interpreting system validation diagnostic front panel LEDs and audible codes
- Troubleshooting guide
- Resources
- General troubleshooting steps
- Identify the issue
- Analyze the issue
- Resolve the issue
- Verify solution
- Helpful Hints
- Common issues and possible solutions
- Additional information
- Acronyms
- Blinking lights and boot error codes
- Processor not executing code
- BIOS recovery code unable to find valid BIOS recovery image
- Memory module error
- Graphics Controller Error (No Controller)
- Failure - System Board Error
- Intel Trusted Execution Technology (TXT) Error
- Sure Start unable to find valid BIOS Boot Block image
- Sure Start has identified a problem (Manual Recovery Policy Set)
- POST error messages and user actions
- Routine maintenance for performance improvement
- Common blue screen error messages
- Use Windows Debugging Tool
- Display issue: pixel anomalies
- Cable management
- Connector types
- Computer Setup (BIOS), TPM, and HP Sure Start
- Using HP PC Hardware Diagnostics
- Backing up, restoring, and recovering
- Specifications
- Power cord set requirements
- Statement of memory volatility
- Recycling
- Index
Table 8-40 Issues, possible causes, and xes (continued)
Items Procedures
The sections below are intended for authorized service providers/technicians.
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).
WWAN
Table 8-41 Issues, possible causes, and xes
Items Procedures
Symptom
Unable to nd networks/service
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.
The sections below are intended for authorized service providers/technicians.
● 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”.
USB
Table
8-42 Issues, possible causes, and xes
Items Procedures
Symptoms
● USB devices are not recognized
● USB devices are not charging
Possible causes
USB devices do not have the latest software drivers, port insucient power, or not
compliant.
NOTE: USB Type-C uses a dierent connector entirely
Examples of USB device Not Recognized 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.
122 Chapter 8 Troubleshooting guide