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

Touchpad
Table 6-8 Touchpad descriptions and part numbers
Description Spare part number
Touchpad for use in models without an NFC module L64675-001
Touchpad for use in models with an NFC module L64676-001
Before removing the touchpad, follow these steps:
1. Prepare the computer for disassembly (Preparation for disassembly on page 32).
2. Remove the bottom cover (see Bottom cover on page 32).
3. Remove the battery (see Battery on page 44).
Remove the touchpad:
1. Disconnect the NFC module cable from the ZIF connector on the NFC module (1).
2. Disconnect the pointing stick module cable from the ZIF connector on the touchpad (2).
3. Disconnect the card reader cable from the ZIF connector on the touchpad (3).
4. Remove the ve Phillips M2.0 × 2.0 screws (1) that secure the touchpad to the computer.
54 Chapter 6 Removal and replacement procedures for authorized service provider parts