Fiio X3 - User Manual

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（Note: X3 Mark III will be called X3 for short in the below Instruction)
All the below illustrating pictures are for reference only.
X3 Complete User Manual
(Applies to FW1.0.0 and later)
Foreword:
Thank you for purchasing FiiO's X3, our 192 kHz/32 bit high resolution lossless
music player. To let you better utilize the X3 to enjoy high-quality music, we have
prepared this complete user manual and collected and answered some frequently
asked questions by users. We hope this manual will help you get to know the X3 and
unleash its full potential.

Summary

Introduction to FiiO X3

Buttons and Ports Overview

Details on the physical buttons and ports of the FiiO X3.

Buttons;Ports Diagram

Visual illustration of the FiiO X3's buttons and ports with numerical labels.

FiiO X3 Buttons and Ports

Detailed Button and Port Descriptions

Explanation of each button's function and port's specifications on the FiiO X3.

Micro SD Card and Headphone Outputs

Details on the micro SD card slot, 3.5mm, and 2.5mm headphone outputs.

Track Navigation and Indicator Lights

Controls for track selection, fast forward/rewind, and the meaning of indicator lights.

USB Port and Functionality

Information about the micro USB port for data transfer, charging, and docking.

Visual Guide to FiiO X3 Menu Operation

Main Menu and Navigation Basics

Overview of the main menu, button functions, and navigation methods.

Menu Sections: Now Playing, Category, Browse

Guide to navigating and understanding the Now Playing, Category, and Browse Files menus.

Settings Overview: Play and System

Introduction to configuring playback options and system-wide settings.

Now Playing Screen Features

Details on album art and lyrics display within the Now Playing screen.

Key-Lock Settings Configuration

Details on setting up the key-lock function to prevent accidental button presses.

FiiO X3 Menu Operation Guide

Powering On;Off and Main Menu Navigation

Steps for turning the device on/off and navigating the main menu.

Now Playing and Category Browsing

Accessing the Now Playing screen and browsing music by category.

Browse Files and Playback Settings

Navigating file folders and configuring playback options like mode and volume.

Advanced Playback and Volume Settings

Adjusting volume, line out, coaxial, equalizer, and playback behavior.

System Settings: Updates and Bluetooth

Managing media library updates and Bluetooth connectivity.

System Settings: Lock Screen and Power

Configuring screen timeout, key-lock, brightness, and idle standby.

System Settings: Sleep Timer and Output Modes

Setting sleep timers, selecting audio output, and configuring SPDIF.

System Settings: USB Modes and UI

Choosing USB connection modes and customizing user interface elements.

System Settings: UI, Library, and Info

Adjusting themes, display, resetting library, and viewing device information.

System Settings: Language and Storage

Selecting language, font size, formatting storage, and factory restore.

FiiO X3 Firmware Update Guide

Firmware Update Preparations and Precautions

Essential steps and warnings before proceeding with a firmware update.

Firmware Update Procedure via Micro SD Card

Step-by-step guide for upgrading firmware using an SD card.

Firmware Update Failure Troubleshooting

Solutions for common issues encountered during firmware updates.

Tips for Using the FiiO X3

Media Library Updates and Favorite Song Access

Advice on quick library updates and accessing favorite songs.

Playback Control and Power Saving Tips

Tips for efficient song switching, volume adjustment, and battery management.

FiiO X3 Frequently Asked Questions

Charging Information and Status

Answers to common questions about charging sources, current, and status.

Battery Indicators and Song Transfer Basics

Understanding battery gauge, charging status, and song transfer speeds.

File Management, Firmware, and Storage

File operations, OS compatibility, firmware details, and storage card support.

Micro SD Card Formatting and Display Issues

Formatting cards and troubleshooting display problems for SD card content.

File Playback, Library, and Cue;Lyric Issues

Troubleshooting file playback, library errors, cue sheets, and lyrics.

Character Encoding and File Display Troubleshooting

Resolving character display issues and ensuring new songs appear correctly.

Other Operations for FiiO X3

Battery Life and Performance Optimization

Tips for extending battery life and improving player responsiveness.

File Organization and Heat Management

Recommended file structure and explanation of device heating.

Connecting FiiO X3 to Other Audio Devices

Audio Output Connections: Line Out and Coaxial

How to connect Line Out and Coaxial outputs to external devices.

Docking Station Compatibility

Information on using the X3 with FiiO docking stations and amplifiers.

Fiio X3 Specifications

General

Weight	122g
Frequency Response	20Hz - 20kHz
Output Impedance	<0.3Ω
Display	TFT LCD
Resolution	320x240
Storage	MicroSD card
Audio Formats	APE, FLAC, ALAC, WMA, WAV, MP3, OGG
Headphone Impedance Range	16Ω
Total Harmonic Distortion	<0.003% (1kHz)