Table of Contents
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Table of Contents
Related Manuals for Lenovo 21NU
Summarization of Contents
Meet Your Computer
Front View Overview
Overview of the computer's front components and their functions, including camera, microphone, and fingerprint reader.
Left and Right Ports
Details and illustrations of ports located on the left and right sides of the computer, such as USB-A, USB-C, and HDMI.
Bottom Panel and Reset Hole
Information about the computer's bottom panel, including the emergency-reset hole and safety precautions for handling.
USB Connector Specifications
Explains specifications and usage of various USB connectors on the computer, including USB-A and USB-C types.
Get Started With Your Computer
Desktop Setup and Basic Operations
Initial steps to set up and interact with the computer's desktop environment, launch apps, and manage networks.
Computer Interaction Methods
Instructions for using the camera, keyboard shortcuts, TrackPoint, trackpad, and touch screen for navigation.
Trackpad and Touch Gestures
Explains various touch gestures for navigating the trackpad and multi-touch screen, including taps, scrolls, and zooms.
Multi-Touch Screen Usage
Guide on using touch gestures for navigating the computer's display, including taps and drags.
Connecting to External Displays
Steps to connect the computer to external monitors or projectors for extended display.
Convertible Modes and Pen Usage
Explains different operating modes of the convertible display and how to use the Lenovo Yoga Pen.
Using the Lenovo Yoga Pen
Instructions on using the Lenovo Yoga Pen for precise input, writing, and sketching.
Explore Your Computer
Intelligent Cooling and Power Features
Details on Intelligent Cooling modes and the P-to-P 2.0 charging function for powering devices.
System Settings and Power Plans
How to set power plans, connect Bluetooth devices, and enable Nvidia drivers in Fedora.
Secure Your Computer and Information
Computer Security Measures
How to physically lock the computer and use the fingerprint reader for system login.
UEFI BIOS Password Management
Information on different UEFI BIOS password types and how to set, change, or remove them.
Password Recovery and Troubleshooting
Procedures for recovering forgotten passwords and addressing related security issues.
Data Protection Features
Explanation of Power Loss Protection and USB-C Restricted Mode for data safety.
Configure Advanced Settings
UEFI BIOS Overview and Navigation
Introduction to UEFI BIOS, accessing its menu, and navigating the interface using keyboard keys.
BIOS Settings and Updates
How to change startup sequence, detect memory issues, set date/time, recover, and update UEFI BIOS.
CRU Replacement
CRU Replacement Preparation
List of Customer Replaceable Units (CRUs) and preparation steps before replacement.
Base Cover Assembly Replacement
Instructions for removing and reinstalling the computer's base cover assembly.
Built-in Battery Replacement
Step-by-step guide for replacing the computer's internal battery.
Wireless WAN Module Replacement
Instructions for replacing the Wireless WAN module and its bracket.
M.2 Solid-State Drive Replacement
Guide on replacing the M.2 solid-state drive and its bracket, including handling precautions.
Help and Support
Frequently Asked Questions and Error Troubleshooting
Common user questions, error messages, and beep error troubleshooting.
Self-Help and Support Resources
How to access documentation, support websites, warranty info, and obtain support for OS/hardware.
Contacting Lenovo Support
Steps and required information for contacting Lenovo Customer Support for assistance.
Service Information and Warranty Services
Locating service QR codes, serial numbers, and understanding available warranty services.
Service Limitations and Additional Purchases
Information on services not covered by warranty and options for purchasing additional services.
Compliance Information
Certification and Energy Information
Details on product certification, including names and machine types, and energy performance values.
Operating Environment Specifications
Specifications for operating temperature, humidity, and maximum altitude.
Accessibility Features
Accessibility Support Overview
Lenovo's commitment to accessibility in documentation and product design, including keyboard and OS features.
Notices and Trademarks
Legal Notices and Disclaimers
Important legal notices, disclaimers, and warranty statements from Lenovo regarding the publication.
Trademark Information
List of trademarks owned by Lenovo and other companies mentioned in the document.
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