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Lenovo ThinkPad P14s Gen 4 User Manual

Lenovo ThinkPad P14s Gen 4
104 pages
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ThinkPad T14 Gen 4 and ThinkPad P14s Gen
4
Hardware Maintenance Manual

Table of Contents

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Lenovo ThinkPad P14s Gen 4 Specifications

General IconGeneral
StorageUp to 2TB PCIe SSD
Dimensions329 x 227 x 17.9 mm (12.95 x 8.94 x 0.70 inches)
GraphicsIntel Iris Xe
Operating SystemWindows 11 Pro
Battery52.5Wh
Weight1.4 kg (3.09 lbs)
Ports2 x USB-C, 2 x USB 3.2, HDMI, MicroSD card reader, Audio jack
WirelessWi-Fi 6E, Bluetooth
Webcam1080p with privacy shutter
AudioStereo speakers
SecurityFingerprint reader, TPM 2.0

Summary

Chapter 1. Safety Information

General Safety

Follow rules to ensure general safety when working with machines.

Electrical Safety

Observe rules when working on electrical equipment.

Safety Inspection Guide

Checklist to identify potentially unsafe conditions before servicing.

Handling Devices Sensitive to Electrostatic Discharge

Procedures to protect against electrostatic discharge damage.

Grounding Requirements

Electrical grounding is required for operator safety and system function.

Safety Notices (Multilingual Translations)

Safety notices provided in multiple languages.

Chapter 2. Important Service Information

Strategy for Replacing FRUs

Guidelines and strategy for replacing Field Replaceable Units.

Strategy for Replacing a Solid-State Drive

Procedures for replacing SSDs, including data backup.

How to Use Error Message

Using error codes and symptoms to diagnose failures.

Strategy for Replacing FRUs for CTO, Special-Bid, and Standard Models

Information on CTO, special-bid, and standard models for FRU replacement.

Product Definition

Introduces different model types and how to identify them.

FRU Identification

Instructions on how to find FRU information for a product.

Chapter 3. General Checkout

What to do first

Information to include in parts exchange/return forms.

Checkout guide

Procedures for identifying and correcting computer problems.

Diagnosing problems

Steps to solve computer problems using documentation and diagnostic tools.

Quick test programs

Running quick tests to troubleshoot problems.

UEFI diagnostic program

Using the preinstalled UEFI diagnostic program for hardware testing.

Bootable diagnostic programs

Creating and using bootable media for diagnostics.

Power system checkout

Procedures to verify battery or AC power adapter functionality.

Checking the ac power adapter

Steps to check the functionality of the AC power adapter.

Checking the built-in battery and operational charging

How to check battery status and charging.

Checking the coin-cell battery

Procedure to check the coin-cell battery voltage.

Chapter 4. Related Service Information

Reset or restore Windows

Information on resetting or restoring the Windows operating system.

Passwords

Information on setting and managing BIOS passwords for security.

Power-on password

Protects system from unauthorized startup.

NVMe passwords

Secures data on the storage drive.

Supervisor password

Protects system information in UEFI BIOS.

System management password

Controls security features via UEFI BIOS or WMI.

Power management

Information on sleep and hibernation modes.

Sleep mode

Computer enters low power state, screen goes blank.

Hibernation mode

System state saved to storage; system is powered off.

Symptom-to-FRU index

Lists symptoms and errors with possible causes and FRU actions.

Numeric error codes

Table of error codes and corresponding FRU actions.

Error messages

Common error messages and their solutions.

Beep errors

Decoding beep errors using smartphone app.

No-beep symptoms

Troubleshooting symptoms without audible beeps.

LCD-related symptoms

Diagnosing issues related to the LCD panel.

Intermittent problems

Analyzing and resolving problems that occur sporadically.

Undetermined problems

Procedures for issues not identified by diagnostics.

Chapter 6. Locations

Locating Computer Controls and Connectors

Identifies physical controls and connectors on the computer.

Front View

Locations of front-panel components like camera and microphone.

Left and Right Views

Ports and connectors on the sides of the computer.

Rear View

Location of the nano-SIM card tray.

Bottom View

Location of the emergency-reset hole.

Locating FRUs and CRUs

Identifying Field Replaceable Units and Customer Replaceable Units.

Major FRUs and CRUs

Lists major replaceable parts with self-service/optional service classification.

LCD FRUs and CRUs

Lists replaceable parts for the LCD assembly.

Miscellaneous parts

Lists screws, kits, and labels.

Connector and cable guide

Identifies system board connectors and their associated cables.

Chapter 7. FRU Replacement Notices

Service tool kit

List of essential tools required for servicing the computer.

Screw notices

Guidelines for tightening screws, especially nylon-coated ones.

Retaining serial numbers

Instructions for restoring system unit serial numbers and UUIDs.

Restoring the serial number of the system unit

Procedure to restore serial number after system board replacement.

Retaining the UUID

Procedure to create a new UUID for the system board.

Reading or writing the ECA information

Using utilities to manage Engineering Change Announcement data.

Chapter 8. Removing or Replacing a FRU

General guidelines for FRU service

General rules and precautions before servicing.

Before servicing the computer

Important steps before starting any FRU replacement.

Disabling the built-in battery

Steps to safely disable the internal battery before service.

Removing the nano-SIM-card and nano-SIM-card tray

Procedure to remove the nano-SIM card and tray.

1010 Keyboard

Removal and installation procedure for the keyboard.

1020 Base cover assembly

Removal and installation procedure for the base cover.

1030 Built-in battery

Procedure for removing and replacing the internal battery.

1040 M.2 SSD and Bracket (Intel models only)

Procedure for replacing M.2 SSD and bracket for Intel models.

1050 M.2 SSD and Bracket (AMD models only)

Procedure for replacing M.2 SSD and bracket for AMD models.

1070 I/O bracket

Procedure for removing and replacing the I/O bracket.

1080 Thermal fan assembly

Procedure for removing and replacing the thermal fan assembly.

1090 USB board cable, USB board and USB board bracket

Procedure for replacing USB board components.

1110 Speaker assembly

Procedure for removing and replacing the speaker assembly.

1120 Coin-cell battery

Procedure for removing and replacing the coin-cell battery.

1130 Memory module (for Intel models only)

Procedure for replacing the memory module on Intel models.

1150 Trackpad and trackpad cable

Procedure for removing and replacing the trackpad and its cable.

1160 NFC module and NFC module cable (for selected models)

Procedure for replacing the NFC module and its cable.

1190 Wireless WAN antenna assembly (for selected models)

Procedure for replacing the wireless WAN antenna assembly.

1200 System board

Important notices and procedure for replacing the system board.

1210 LCD unit

Procedure for removing and replacing the LCD unit.

2010 LCD bezel sheet and LCD bezel

Procedure for replacing the LCD bezel sheet and bezel.

2020 LCD hinges

Procedure for removing and replacing the LCD hinges.

2030 LCD panel and elastic adhesive tapes

Procedure for replacing LCD panel and adhesive tapes.

2040 LCD cable

Procedure for removing and replacing the LCD cable.

2050 Camera-and-microphone module and cable

Procedure for replacing camera and microphone module.

2060 LCD cover assembly

Procedure for removing and replacing the LCD cover assembly.

Appendix A. Notices

Appendix B. Abbreviation table

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