(Note: X7 Mark II would be referred to X7 in the below guide)
All the below illustrating pictures are for reference only.
X7 Mark II User Manual
Foreword:
Thank you for purchasing FiiO’s X7, our 384kHz /32bit / DSD high resolution lossless music player. To let you
better utilize the X7 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 X7 and unleash its full potential.
1
Contents
A. Introduction .....................................................................................................................................................4
B. Buttons and ports introduced ..........................................................................................................................4
1. Pictorial guide to buttons and ports.......................................................................................................4
2. Buttons and ports explained ..................................................................................................................5
C. Pure Music / Android Mode switch..................................................................................................................6
1. Switching from Android to Pure Music mode ........................................................................................6
2. Switching from Pure Music to Android mode ........................................................................................6
D. Wireless connectivity .......................................................................................................................................8
1. Bluetooth ................................................................................................................................................8
2. WiFi.........................................................................................................................................................9
E. Firmware updates.......................................................................................................................................... 10
1. Over-the-air automatic updates .......................................................................................................... 10
2. Local Updates ...................................................................................................................................... 11
3. Over-the-air manual updates .............................................................................................................. 12
Notes and Precautions ............................................................................................................................ 13
E. Pictorial guide to operating the X7 ................................................................................................................ 14
1. Android Mode..................................................................................................................................... 14
1) Status bar .................................................................................................................................... 14
2) Notifications panel ..................................................................................................................... 14
3) Quick Settings menu ................................................................................................................... 15
4) FiiO Market .................................................................................................................................. 16
6) X7 Settings .................................................................................................................................. 17
Response to in-line remotes on connected headsets may be enabled or disabled by your choice . 18
2. FiiO Music ........................................................................................................................................... 24
1) App homepage ........................................................................................................................... 25
a) Alphabet scrolling ........................................................................................................................ 28
b) Gestures ..................................................................................................................................... 28
c) More functions menu at the lower right .................................................................................... 28
3) Now playing ................................................................................................................................. 29
4) EQ Equalizer ................................................................................................................................ 30
3. Pure Music Mode ........................................................................................................................ 31
F. FAQ ................................................................................................................................................................ 32
1. Charging............................................................................................................................................... 32
How large is the X7’s battery? How long will it last? ..................................................................... 32
How may the X7 be charged?.......................................................................................................... 32
How long does it take to fully charge the X7? ................................................................................. 32
Can X7 be used while charging? ...................................................................................................... 32
Does the X7 display accurate battery levels? .................................................................................. 32
What to do if the X7 gets hot while charging and playing at the same time? ................................ 33
2. Transferring songs ............................................................................................................................... 33
What operating systems does the X7 support? .............................................................................. 33
What USB ports is the X7 compatible with? ................................................................................... 33
What are the transfer rates of the X7? ........................................................................................... 33
The X7 is connected to my computer. Now how to transfer songs from the computer to the X7?
......................................................................................................................................................... 33
Is driver installation required for transferring songs? .................................................................... 33
3、Firmware updates ............................................................................................................................. 33
2
How to tell whether the X7 has the latest firmware? ..................................................................... 34
Would the X7 be bricked if update fails? What to do if the X7 is bricked? .................................... 34
4、Storage .............................................................................................................................................. 34
Does the X7 contain internal storage? Is removable storage supported? ..................................... 34
Is the X7 picky about cards? ............................................................................................................ 34
5、Playing music ..................................................................................................................................... 34
Why can my APE files not be played by the X7? ............................................................................. 34
Does the X7 support CUE sheets? ................................................................................................... 35
Does the X7 support CUE sheets? ................................................................................................... 35
Why does X7 not show the cue file in the micro SD card when browsing files? ............................ 35
How to listen to all the music folders on the X7 one by one without switching
Folders/Artist/Album/Genre manually? ......................................................................................... 35
Why do the songs I’ve copied into the X7 not appear in any listing (except Folder view) in FiiO
Music? ............................................................................................................................................. 35
6、Connecting with other audio equipment .......................................................................................... 35
How to connect the X7 Line Out to other equipment? What to connect it to? ............................ 35
Could X7 be used with FiiO's docking station? ................................................................................ 36
The X7 does not get detected by my computer for file transfers? ................................................. 36
How to connect the X7’s Coaxial/Optical digital output to other equipment? What to connect it
to?.................................................................................................................................................... 36
Why does my HT receiver never play the first ten seconds of music from my X7? ........................ 36
7、Other operations ............................................................................................................................... 36
How to get longer battery life for the X7? ...................................................................................... 36
Why is the X7 a bit sluggish in responding at times? ...................................................................... 37
Why can’t I go to the homescreen by pressing the home button?................................................. 37
Why can’t I see the Quick settings menu when I pull down from the top of the touchscreen? .... 38
Does the X7 support 256GB micro SD cards?.................................................................................. 38
Does the X7 coaxial digital output support DoP? At what rate? .................................................... 38
Why can my X7 not receive OTA updates / why is the OTA update so slow? ................................ 38
Why sometimes it shows "0 new songs added to media library" after updating? .......................... 38
3
A. Introduction
The X7 is a high fidelity, high resolution digital audio player, running on Android 5.1 and
supporting various music formats such as DSD,DXD, WAV, WMA, APE, FLAC, AAC, AIFF, ALAC, Ogg
Vorbis, MP3 etc. at up to 384kHz / 32bit, also sporting such professional features as native DSD
decoding, CUE sheets, gapless playback, playing automatically through folders, and graphic
equalizers. X7 also comes with Bluetooth.
Based on Android, the X7 allows the user to use his own choice of any Android music
player app, and also comes with its native player app FiiO Music, which has been customized in
response to research on users’ usage habits for a quick and smooth music listening experience.
Meanwhile, the X7 supports WiFi connection, which allows you to enjoy streaming music for
more enhanced music experience.
B. Buttons and ports introduced
1. Pictorial guide to buttons and ports
3.5mm Line/Coaxial Out/Optical out
Power/Lock
Play/Pause
Touchscreen
(With protector film
applied)
Volume Knob
Previous track
/Next track
Micro SD card slot 1
Micro SD card slot 2
Indicator light
T5 screw
(expansion module fastener)
T5 screw
AM3A headphone
module
3.5 mm Headphone port
4
2.5mm TRRS balanced headphone
port
Micro USB port
2. Buttons and ports explained
1) Touchscreen (16.7 million colors, 480x800 pixels): Displays the user interface and other
information; for operating the unit via screen touches and/or in conjunction with buttons on the
unit;
2) Play / Pause: Press while playing to pause music, press while paused to continue playback;
3) Volume knob: Scroll up to turn up the volume, scroll down to turn down the volume.
4) Previous / next track: Press to skip to the previous or next track;
5) Indicator light: Indicates player’s operating status (lighting effect may be customized: Settings ->
Display ->Pulsar light)
6) Power / Lock: While X7 is powered off, hold for 2s to turn on; while powered on, hold to display
power off / reboot menu; press briefly while powered on to turn screen on / off; Press and hold for
15 seconds to reset.
7) Micro SD card slot: Dual micro SD card slots each supporting up to 256GB capacity
8) 3.5mm headphone port: Connect your headphones here. CTIA-spec headsets with in-line
remote control supported with the following remote control operation (single button remotes and
main button of multi-button remotes supported):
Volume Up/Down: click to turn up/down the volume by one step, hold to turn up/down the
volume continuously to Max volume/Mute
Play / Pause: press main button once briefly to toggle between play and pause;
Next track: double-click main button quickly;
Previous track: triple-click main button quickly;
9) 2.5mm balanced headphone output: Supports 2.5mm TRRS balanced headphone
10) Micro USB port (11-pin): for charging, data transfer, USB DAC function and connection to FiiO
docks; It's recommended to use a Quick Charge adapter (DC9/12V 2A) for charging. X7's supposed
to be fully charged within 2 hours when in Quick Charge mode. With DC5V/2A adapter, it's
supposed to be fully charged within 4 hours.
11) 3.5mm line / Coaxial output/ Optical output: Shared line / coaxial output port. Switch
between the two outputs in X7 Settings -> Sound Settings -> Multifunctional Output.
12) T5 screws: for removably securing expansion modules.
5
C. Pure Music / Android Mode switch
1. Switching from Android to Pure Music mode
While in Android mode, Pull down the Quick Settings menu from the top of the touchscreen and tap
on the “Android Mode” icon; the player will prompt you on whether to switch the mode. Press OK to
switch the X7 to Pure Music mode, allowing uninterrupted music enjoyment with the built in FiiO Music
app.
2. Switching from Pure Music to Android mode
While in Pure Music mode, Pull down the Quick Settings menu from the top of the touchscreen and
tap on the “Pure Music Mode” icon; the player will prompt you on whether to switch the mode. Press OK
to switch the X7 to Android mode, allowing a rich music experience with 3rd party Android app
compatibility.
6
7
D. Wireless connectivity
The supportability of Bluetooth and WiFi on X7 enables users to expand the X7’s function by wireless
connection.
1. Bluetooth
To use the X7 with new Bluetooth devices (e.g. Bluetooth earphones, speakers, remote controls), the X7
must first be paired with the device as follows:
1) Pull down the Quick Settings menu from the top of the touchscreen and hold your finger on the
Bluetooth icon to open the Bluetooth settings menu;
2) If Bluetoothon the X7 is off, turn it on by flicking the switch on the upper right to the “ON” position on
the right;
3) Tap “SEARCH FOR DEVICES” at the bottom of the screen to have the X7 search for and display nearby
Bluetooth devices;
4) Tap the name of your Bluetooth device to pair with it. Successfully paired devices will appear under
the “PAIRED DEVICES” list:
Notes: The X7 will pair with the device it last paired with by preference.
10/35
2. WiFi
The X7, supporting WiFi 2.4/5G, may connect to the Internet or other network resources
to obtain music resources or (in Android mode) perform other Android functions; it may
also stream music to WiFi audio devices.
To connect the X7 to WiFi devices / hotspots:
1) Pull down the Quick Settings menu from the top of the touchscreen and hold your finger on the Wi-Fi
icon to enter the Wi-Fi settings menu;
2) Slide the WiFi switch to the right (ON) and the X7 will automatically search for and display available
WiFi connections:
3) Tap the name of the WiFi network you wish to connect to and enter the password if prompted, and
the X7 will connect to the network:
Note: when its WiFi is on, the X7 will connect to the WiFi network it last connected to by preference.
10/35
E. Firmware updates
Improper operation during firmware updates may cause the unit to malfunction! Please read the
following instructions for firmware updates carefully before proceeding.
1. Over-the-air automatic updates
1) Turn on the X7’s WiFi and connect to the internet with a suitable hotspot
2) The X7 would check for over-the-updates and prompt for updating automatically if a newer firmware
version is found:
3) Tap “Yes” and the X7 will download the update and install it automatically when download is complete.
Note:
a) You may tap the home button to dismiss the download screen and continue using the X7;
b) Please connect to a high speed network to save download time;
c)
The package download may be stopped and resumed;
d) Do not attempt to operate the X7 when the update proper is ongoing.
The X7 will reboot twice, once in update mode, then back into Android mode. The update process is
complete when the Android lockscreen appears.
4) After the update is complete, please delete the update package as prompted.
10/35
2. Local Updates
1) Copy the update zip file provided by FiiO to the internal storage or the SD card inserted into the SD
card slot 1 of the X7. (it is recommended to copy to the root directory of either; firmware updates will not
affect the files or music contained in the X7.)

Do not rename or extract the zip file.
To copy files to the X7:

Connect the X7 to the computer via the provided USB cable.

The “USB connected” screen should pop up automatically. Tap “Turn on USB storage” near the
bottom.
 If the “USB connected” screen does not appear automatically, pull down the notifications
panel from the upper left of the touchscreen and tap on “USB connected” to bring it up.

The internal storage and SD cards of the X7 will appear as USB drives on the connected computer.

Copy files (e.g. the update zip) to the Internal Storage or to the Micro SD card 1.
Safely eject the two drives from the computer (e.g. right-click each drive and choose “Eject”).
2) Go to the Android homescreen, tap “Technical support”->Firmware Update. In the file browser, find
the downloaded zip file in internal_sd or external_sd1 and tap on it. The system will prompt you to confirm
whether to update the X7 with the selected zip file:
3) Tap “OK” to start the update. Do not attempt to operate the X7 while the update is ongoing.
4) The X7 will reboot twice, once in update mode, then back into Android mode. The update process is
complete when the Android lockscreen appears.
10/35
3. Over-the-air manual updates
If you have cancelled the over-the-air automatic firmware update and want to upgrade to the latest
firmware later, you can choose to manually start the upgrade.
1) Turn on the X7’s WiFi and connect to the internet with a suitable hotspot
2) Select "Technical support" on the desktop > "Firmware Update"> "Online Upgrade" under android
mode, choose the update file and following dialogue would pop up.
3) Click Check Upgrade then The X7 would check for over-the-updates and prompt for updating automatically if a
newer firmware version is found:
4) Tap “Yes” and the X7 will download the update and install it automatically when download is
complete.
5) After the update is complete, please delete the update package as prompted.
10/35
Notes and Precautions
1) Make sure the X7 is adequately charged (preferably fully charged) for the update process to prevent
power failure during the update.
2) If update fails, check that you selected the correct update zip file;
3) Please ensure adequate storage capacity if you need to use internal storage to upgrade
(recommended to operate when there's over 1GB storage available for use).
4) Do not attempt to operate the X7 while the update is ongoing.
10/35
E. Pictorial guide to operating the X7
1. Android Mode
The Android interface of the X7 is similar to that of other Android device, for an intuitive
operating experience.
1) Status bar
The status bar at the top of the screen displays various info on the current status of the X7:
1——Volume icon
2——Current volume level
3——Headphone Amp module
4——FiiO Music
5——USB connected
6——Bluetooth on
7——Docked connected
8——Optical connected
9——Coaxial connected
10——Lineout connected
11/12——Headphone connected / Balanced
headphone connected
13——WiFi on
15——Battery level & Battery icon (charging)
14——Time
2) Notifications panel
The notifications panel displays various system notifications. Pull down from the top
status bar to show the notifications panel. Pull up from the bottom of the panel or tap
the back or home buttons to dismiss the panel.
14
3) Quick Settings menu
The Quick Settings menu shows some of the commonly used settings icons for the X7 in one full page.
To enable the Quick Settings menu, pull down from the top of the screen to enable the notification panel,
then pull down the notification panel to enable the Quick Settings menu. Pull up from the bottom of the
menu or tap the back or home buttons to dismiss the panel.
The following quick settings icons are shown:
Settings: tap to show full settings menu (useful in Pure Music mode);
Battery: shows current battery level. Tap to show full battery info;
Brightness: tap to show brightness adjustment slider;
WiFi: tap to turn WiFi on / off; hold to show WiFi settings menu;
Bluetooth: tap to turn Bluetooth on / off; hold to show Bluetooth settings menu.
Current operation mode (Android / Pure Music mode): tap this to switch to the other operation mode;
Line out/Coaxial/Optical out: click to switch between Line out, Coaxial out and Optical out
Gain: click to switch between High gain and Low gain
Filter Settings: click Filter Settings to enter the Audio Settings then click Lowpass filter mode to switch
between 7 filter modes
Storage: click to switch to USB DAC mode (Please go to download the USB DAC driver from the official website:
http://www.fiio.net/en/supports, and install it by following the corresponding instruction.)
Power-off timers: click to enter Power-off timers setting to set the sleep or idle power off functions
15
4) FiiO Market
With the X7 connected to the internet via WiFi (see section D.2), Tap “FiiO Market” on the Android
homescreen to show a list of officially recommended apps for which compatibility with the FiiO X7 has
been rigorously tested. Slide up and down to view the full list of apps.
16
5) Technical support
Tap “technical support” on the Android homescreen to enter the technical support menu, with
the following options:
Firmware update: tap to manually select an update zip package for updating the X7’s firmware
Quick start guide: tap to view the quick start guide for the X7.
Contact Us: Click for the FiiO official platforms and contact information (Internet connection
required)
FiiO’s official website: Tap to go to FiiO’s official website (Internet connection required), to
receive the latest news and info on our products (including the X7);
FiiO Forum: Tap to enter FiiO’s FiiO forum (Internet connection required), to interact with other
music lovers online;
FiiO on Head-Fi: Visit the FiiO forum page on Head-Fi (Internet connection required)
6) X7 Settings
The X7 runs FiiO’s Android-based OS, which has been deeply customized for optimal audio
performance from Android. Thus, some of the settings options differ from usual Android settings
and will be explained below:
To enter Settings, tap the cog icon (on the lower right of the homescreen by default). You may
also enter the app drawer and tap the cog icon there labelled “Settings”
17
a) Audio Settings—In-line remote
Response to in-line remotes on connected headsets may be enabled or disabled by your choice
b) Audio settings—Adjustable volume at LO
Adjustable volume at LO: On/Off
This allows you to set whether the volume through Line Out can be controlled by adjusting the
volume level or not.
c) Audio settings—lowpass filter mode
To set the filter modes: Fast Roll Off Linear Phase, Slow Roll Off Linear Phase, Apodizing Fast Roll
off, Fast Roll Off Minimum Phase, Slow Roll Off Minimum Phase, Hybid Fast Roll Off, Brickwall
18
d) Audio settings—Multifunctional Output
The 3.5mm output port at the up left of the X7 may output analog line signal or coaxial/optical
digital signals. This menu item lets you choose among the three.
e) Audio settings— SPDIF out setting
There are two modes of using the SPDIF Out: D2P (DSD to PCM) and DOP (DSD over PCM).
Under D2P mode, you play the PCM signal and will get the original PCM signal out. When playing
the DSD signal, system will convert the DSD signal to PCM signal and output. Under DoP mode,
PCM signal can be directly outputted and so does DSD signal. However, to have the signal output,
19
the coaixal device connecting with the DAP needs to support DSD. It can only support up to DSD64
signal when SPDIF Out, higher specs format like DSD 128 is not supported.
f) Audio settings—Gain
Sets the gain level of the headphone output to be either High (high volume) or Low (low volume).
g) Audio settings—Channel balance
Sets the volume balance between the left and right channels. From being biased leftmost (L10)
through centred (0) to rightmost (R10), there are 21 settings available.
20
h) Display— Brightness level
To set the brightness of the screen to a comfortable level according the actual environment.
I) Display—Wallpaper
To set the wallpaper at your preference
21
J) Display—Pulsar light
This menu item lets you customize the lighting of the pulsar light (blue horizontal light below the
touchscreen and FiiO logo). The brightness of the light can be adjusted in 256 steps.
The light can be set to light steadily (Lit), pulse slowly on and off (Pulsing), or not light (Off).
Different setting can be made when the X7 is Charging, and when it is Working (powered on).
k) Display—Sleep
Specify after how much time of inactivity (no button presses, screen touches or palying) X7 will
enter sleep mode. In Sleep mode, X7 would have low power consumption. Short press the Power
button to wake up X7 from Sleep mode.
22
l) Display—Font Size
Choose the font size at your personal preference
m) Powertimer—Sleep
”Sleep” can be used to turn off the X7 after a set time, regardless of activity. This may be
useful for e.g. bedside listening.
The sleep timer may be set to any number of minutes between 0 (OFF; no timer) and 120.
23
n) Powertimer—Idle poweroff
Idle poweroff is a setting for turning off the X7 after a set period of detected inactivity (no
button presses or screen touches).
The Idle poweroff timer may be set to any number of minutes between 0 (OFF; no timer) and
50.
2. FiiO Music
The X7 includes the FiiO Music app, a music player application that has been highly customized to
make full use of the audio hardware of the X7 and tailored to the usage needs of advanced music
enthusiasts.
24
On first launch of FiiO Music, a pictorial guide to the app will appear. Below is a reproduction
of the pictorial guide along with further guiding description.

The pictorial guide can be recalled at any time by tapping Settings (cog icon on upper left
of app homepage)->Help (near bottom of menu).

On first launch of FiiO Music, you will be prompted to scan for music on your X7. Tap “Scan
all” to scan all locations on the X7 automatically, or “Scan selected folder(s)” to manually
select locations to be scanned.
1) App homepage
On launching the FiiO Music app, the following homepage appears (shown with guide
annotations here). The following functions can be performed on the homepage:
Random track: Tap the album art window at the top to play a random song from your
collection (media library scan must be completed first); slide your finger left over the window to
switch to the next track, or right for the previous track;
Shortcut to Now Playing: tap on the round music note button to the upper right to jump to
the Now Playing screen (for which operation is detailed further below);
Settings: tap the cog icon to the upper left to show various app settings options;
Search: tap on the magnifying glass icon at the upper right corner to quickly search for a song
in your X7;
Play playlists: Tap the list icon on the left to browse playlists, including Favorites playlist and
other user-defined playlists (does not include M3U file-based playlists, which can be found via file
25
browsing);
Local music: Tap the folder icon in the middle to enter the main music browsing menu for all
songs stored locally on the X7, including on the inserted micro SD card;
DLNA: Tap the DLNA symbol on the right to connect to a DLNA-enabled network and browse
music on your network.
Recently played: Lists your recently played songs according to the time when played;
Most played: Lists your most popular songs according to playback frequency.
Recently added: Lists the tracks that are recently added to the library
Settings
Search
Random Track
Shortcut to Now Playing
Local Music
DLNA
Playlists
Note: playlists, local music, DLNA, recently played and most played can be selected / unselected
for display and their display effects customized in Settings->UI Personalization within the app.
2) Local music
The “Local music” screen displays the songs stored in your X7in 5 different listings. From left
to right, they are:
Songs: shows all songs in one list according to the chosen order. (Tap the blue circle in the
lower right to choose between sorting by number of tracks in the folder and alphabetical order)
Artists: displays all artists that performed in at least one track stored in your X7 according to
the chosen order. (Tap the blue circle in the lower right to choose between sorting by number of
tracks performed by the artist and name of the artist)
Tap on an artist to view a listing of all songs performed by the artist; or tap the first
26
icon to the right of the artist name to view a list of albums by the artist instead; tap on an album to
view the tracks within that album.
Tap on the name of a song/track to play that track.
Albums: displays all albums stored in your X7 according to the chosen order. (Tap the blue
circle in the lower right to choose between sorting by number of tracks in the album and album
name)
Tap an album to view the tracks within that album. Tap a track to play. Genre:
displays the names of all genres represented by at least one song on your X7, according to the
chosen order. (Tap the blue circle in the lower right to choose between sorting by number of tracks
of that genre and genre name)
Tap the name of a genre to view all songs of that genre;
Folder view: performs as a folder browser showing all directories on your X7’s internal
storage and inserted micro SD card, but only showing playable music files.
Note: Tap on the More function icon "…" and you could select the sorting method or
edit the list.
Sliding your finger right over a list item reveals four options. From left to right they
are:
Add to favorites: add the song or the songs contained in the list item to the Favorites playlist.
Add to playlist: add the song or the songs contained in the list item to a playlist of your
choosing.
Play over Bluetooth: play the song or the songs contained in the list item over Bluetooth.
Track Info (only shown when a particular song / track is selected): shows various info on the
selected track, including ID3 tag info, song length, bitrate, etc.
27
Note: Sliding your finger left over a list item reveals an option to delete the item. (or format a
drive, if “internal storage” or “SD card” is selected in folder view…) Tap on the red button and you
will be prompted to confirm the delete action.
a) Alphabet scrolling
When the list is ordered by alphabet (tap the blue circle to the lower right and select the “A->Z”
option), you can slide your finger over the alphabet list to the right of the screen and quickly jump
to the part of the list that starts with the selected letter.
b) Gestures
Sliding your finger from left to right over a list item to enable the shortcuts menu and tap on the icons to
perform the corresponding operations (Add to Favorites, Add to Playlist, Bluetooth, Track Info). Sliding from
right to left over a list item reveals an option to delete the item. (or format a drive, if “internal storage” or
“SD card” is selected in folder view…) Tap on the red button and you will be prompted to confirm the delete
action.
c) More functions menu at the lower right
Tap the More function menu at the lower right and you’ll be given various options: Choose
sorting order of the list: e.g. sort by number of tracks in list item, alphabetical order;
Batch operation: Tap the pencil icon and checkboxes will appear to the right of the list. Tap
the checkboxes to select the list items you want, then tap the batch operation desired at the
bottom. From left to right they are: play, add to favorites, add to playlist, (cancel operation), and
28
delete.
3) Now playing
The Now Playing screen has buttons to tap on as well as places you can activate with neat
gesture actions, as detailed below:
Home
Search
Equalizer
Play via Bluetooth
Favorites
Add to playlist
Delete track
Previous track
Play mode
Play/Pause
Track info
Next track
Close More functions
More functions
a) Buttons explained
Referring to the numbering of the buttons above, the buttons in this screen are as follows:
1) Home: return to App homepage (see section F.2.1);
2) Search: Tap to show a fullscreen search pane for all songs on the X7. Searching of track title,
album name and artist name are supported. Recent searches are saved;
3) Equalizer: tap to open the equalizer control panel;
4) Play via Bluetooth: button to toggle between playing the present track through Bluetooth
or wired headphones. Opens Bluetooth pairing screen if no Bluetooth audio devices are connected
(see section D.1);
5) Add to Favorites: Tap to add the present track to the Favorites playlist;
6) Add to playlist: adds the present song to a playlist of your choosing.
7) Delete track: Tap to show the pop-up message about deleting the present track
8) Track info: Tap the More functions to view track info
9) Play mode: Tap to choose between Play All once, Loop Single, Shuffle and Loop All (It can be
changed to EQ or Favorites by “Shortcut display in Now playing” setting which only is shown on
White theme.)
10) Previous track
29
11) Play / Pause: Plays / pauses the present track, whichever is applicable;
12) Next track
13) More functions: Tap to show the More functions menu
14) Close More functions menu: Tad to close the More functions menu
b) Gesture operations
Slide left and right on the album cover to change tracks;
Click on the middle of the album cover to switch between displaying the album cover, lyrics,
ID3 info and VU meter;
View playlist: slide in from left edge to view the current list of songs queued for play; tap any
song on the list to jump to that song;
Tap outside of the playlist on the left to close the list;
Adjust volume: slide up / down on the right edge of the album cover area to adjust the
volume.
Slide to fast forward / rewind: tap anywhere on the progress bar below the album cover area
to jump to the corresponding part of the track now playing;
Note: While in the lyrics display page, you can adjust the playback progress by sliding over the lyrics,
adjust lyrics timeline or adjust font size.
4) EQ Equalizer
FiiO Music incorporates a graphic equalizer. One may choose between the given genre presets
directly, or adjust the ten frequency bands from 31Hz to 16kHz independently from -6dB to +6 dB,
thus satisfying your personalized listening needs and adapting to your listening equipment.
30
EQ switch: Slide the lever on the upper right to the right to activate the equalizer.
Choose preset EQ: Swipe up from the bottom of the screen (above the homescreen button) to
show the full list of EQ presets. The corresponding genres are: Pop , (User Defined) , Rock, Dance,
Blues, Metal, Vocal, Classical
Customize EQ: to customize an EQ setting:
1. Turn on the equalizer;
2. Choose the genre preset to be adjusted (e.g. “User Defined”);
3. Drag a vertical slider to adjust its corresponding frequency up and down. The EQ curve above
changes to reflect your adjustments. Swipe left or right over the sliders to move between the low
and high frequency sliders; Press the Back button to the lower right to exit and save changes;
Reset EQ: Tap the reset button at the upper left corner to reset the present EQ preset to its genre
default.

If a factory reset is performed on the X7, all EQ settings will be reset to defaults.
3. Pure Music Mode
The operation of the X7 in Pure Music mode is similar to in Android mode, with the exception
that the X7 will be in FiiO Music all the time. In this mode, all background Android processes will be
disabled to allow for a smoother music experience.
To switch to Android mode, pull down the Quick Settings menu from the top of the
touchscreen and tap on the “Pure Music Mode” icon to switch to Android mode.
31
F. FAQ
1. Charging
How large is the X7’s battery? How long will it last?
A: The X7 utilizes a 3800mAh rechargeable Li-poly battery, for roughly 10 hours of play time in
normal use. You may refer to http://fiio.net/en/products/71/parameters , “Battery Life Test
Conditions”, for the conditions under which the battery life of the X7 was tested.
How may the X7 be charged?
A: The X7 utilizes a micro USB port for charging and is compatible with all USB power sources:
1. X7 supports both normal charge and quick charge. It's recommended to use a quick charge
adapter (DC9/1.5A, 12V/2A) to charge X7. It could be fully charged within 2 hours in Quick Charge
mode.
2. Connecting to computer USB port (however charging will take longer because of low current limit
of computer USB ports).
3. Using mobile USB power banks (output voltage DC5V; output current of 1A or above
recommended)
How long does it take to fully charge the X7?
A: It could be fully charged within 2 hours using a quick charge adapter (DC9/1.5A, 12V/2A) and
within 4 hours using a DC5V 2A adapter.
Can X7 be used while charging?
A: The X7 utilizes a high-quality power management circuit to ensure its reliability.
1. The X7 may be used while charging without performance degradation or damage to the person
or the X7.
2. The temperature of the X7 will rise somewhat when charging and playing; this is normal.
3. Charging time of the X7 from empty to full will be lengthened as a result of part of the charging
current being diverted to power the X7.
Does the X7 display accurate battery levels?
A: Yes, the X7 includes a coulomb meter for its battery and gives accurate battery readouts.
32
What to do if the X7 gets hot while charging and playing at the same time?
A: As noted above the X7 can be charged and used at the same time without harm. Nevertheless
you may choose to turn off the X7 for charging.
2. Transferring songs
What operating systems does the X7 support?
A: The X7 supports windows XP and x86 and x64 versions of Windows 7, 8 and 10, as well as Apple’s
Mac OS. Linux is supported in general, however full compatibility with all the varieties of Linux is
not guaranteed.
What USB ports is the X7 compatible with?
A: The X7 is a USB 2.0 device and is compatible with all USB ports backwards compatible with
USB2.0, including USB3.0 and USB-C, the latter via suitable adapter cables.
What are the transfer rates of the X7?
A: Transfer rate depends on the data format and the micro SD card used. Using a Sandisk Class 10
SD card, the following results are experimental data which is just for reference:
Internal memory: writes 11MB/s, reads 26MB/s(approx.)
Micro SD card 1: writes 6MB/s, reads 26MB/s(approx.)
Micro SD card 2: writes 12MB/s, reads 23MB/s(approx.)
The X7 is connected to my computer. Now how to transfer songs from the computer to the X7?
A: Simply drag and drop folders of music from your computer to the X7, which appears as a regular
removable USB drive. If you prefer to use a music library management program on your computer,
you may use any management program that supports library management of connected regular
removable USB drives.
Is driver installation required for transferring songs?
A: No.
3. Firmware updates
33
How to tell whether the X7 has the latest firmware?
The X7 will automatically look for the latest firmware online whenever it is connected to the
internet via WiFi.
Other than that, you may also manually check the firmware version on your X7 (Android
Settings -> About X7 -> Build number) against the firmware versions listed at
http://fiio.net/en/supports/45 .
You may also pay attention to general FiiO
news at www.fiio.net or community news at
http://www.head-fi.org/f/180/fiio or
www.fiio.me.
Would the X7 be bricked if update fails? What to do if the X7 is bricked?
A: Please ensure that the X7 is well charged, preferably fully charged, before updating. The X7
should not brick during update even if it fails. Nevertheless, if your X7 is bricked, please contact us
at support@fiio.net and we will help you with it.
4. Storage
Does the X7 contain internal storage? Is removable storage supported?
A: The X7 comes with 64GB of internal storage and presently supports two micro SD cards of up to
256GB capacity (512GB for two).
Is the X7 picky about cards?
A: From our testing, the X7 supports all major SD card brands. To prevent slow card speeds
causing dropouts when listening to music of high bitrates (such as 384kHz/24bit APEs and
DSD128), cards of Class 10 or above are recommended.
5. Playing music
Why can my APE files not be played by the X7?
A: APE comes in 5 compression rates, Fast, Normal, High, Extra High, and Insane. The X7 may play
up to Fast, Normal, and High compression APEs of up to 384kHz/24bit, and Extra High and Insane
APEs of up to 192kHz/24bit. Please check whether the track you are attempting to play is
34
supported by the X7.
Does the X7 support CUE sheets?
A: The X7 supports external cue sheets for identifying and playing a cue’d music file as separate
tracks.
Does the X7 support CUE sheets?
A: Embedded cue sheets are not supported. Also please make sure that the .cue file is named the
same as the music file that it cues.
Why does X7 not show the cue file in the micro SD card when browsing files?
A: Since it has been already been used by the X7 to split the cue’d file into multiple tracks (which
are shown).
How to listen to all the music folders on the X7 one by one without switching
Folders/Artist/Album/Genre manually?
A: Please go to FiiO Music “Settings->Play through folders” and set it on, then it will skip
automatically from the last song in one folder/artist/album/genre to the first song in the next
folder/artist/album/genre when playing from a folder folder/artist/album/genre listing.
Why do the songs I’ve copied into the X7 not appear in any listing (except Folder view) in FiiO
Music?
A: Please go to FiiO Music Settings->Scan for songs to index your songs into the listings.
6. Connecting with other audio equipment
How to connect the X7 Line Out to other equipment? What to connect it to?
A: First, make sure that the Multifunctional Output (Section F.1.6.c) is set to Line Out. Then connect
the LINE/COAX/OPT OUT port on top of the X7 to the line in / aux in port of your equipment via an
appropriate interconnect. The Line Out is a standard high level line output and is for connecting to
line inputs such as that on headphone amplifiers, AV receivers, loudspeaker preamps, powered
speakers, etc. The default line output level is high (2V) and can damage headphones. In any case,
35
headphones are not meant to be connected to a line output and will perform poorly.
Could X7 be used with FiiO's docking station?
A: X7 could be used with FiiO's docking station DK1 and desktop amplifier K5 via Micro USB
connection.
The X7 does not get detected by my computer for file transfers?
A: The X7 may be connected to the computer as a standard USB storage device or as a DAC (for
outputting audio being played by the computer). Disconnect the X7’s USB connection, pull down
the settings menu from the top of the touchscreen and check that the USB connection is set to
“storage” rather than “DAC”; then plug the X7 back in. You will be prompted to “Turn on USB
storage”. (the prompt can also be brought up manually by pulling down the notifications panel
from the upper left of the touchscreen and tapping the “USB connected” notification.)
How to connect the X7’s Coaxial/Optical digital output to other equipment? What to connect it
to?
A: First, make sure that the Multifunctional Output is set to Coaxial or Optical digital out. Then
connect the LINE/COAX/OPT OUT port on top of the X7 to the provided S/PDIF adapter cable. Then
connect the other end of the adapter cable to your equipment’s Coaxial or Optical input with an
appropriate RCA coaxial cable or Optical cable.
Note: Different manufacturers may have different pin-out definition of the coaxial cable plug. Please use the
coaxial cable supplied with the X7 to avoid the no output problem resulting from incompatibility.
Why does my HT receiver never play the first ten seconds of music from my X7?
A: If the HT receiver is not explicitly set to receive audio from the coaxial port, it takes
approximately ten seconds to detect that audio is not coming in through the HDMI port and
switch to the coaxial port. In this case, please set the HT receiver’s audio input to Coaxial.
7. Other operations
How to get longer battery life for the X7?
A: a) Set the display to sleep after a certain period of inactivity (system Settings->Display>Sleep), and lock the screen before putting the X7 in your pocket, so that the touchscreen does
36
not continue accepting input in your pocket and keep your X7 active.
b)Turning down the backlight brightness and turning off the pulsar light can also save battery.
c) Go to X7’s system settings -> Powertimer -> Idle poweroff to set the Idle poweroff timer; And
after the set time of inactivity, X7 will power off automatically to save power.
Why is the X7 a bit sluggish in responding at times?
A: a) High bitrate lossless tracks, particularly 384k/24bit APEs or DSD files, take more hardware
resources to decode, possibly causing slowdowns in the player UI. You may convert such APEs to
FLACs or uncompressed WAVs using programs such as foobar2000 on the computer first to make it
easier on the player. The sound quality will be the same.
b) Massive songs stored in the micro SD card might also result in operation delay.
c) Massive files of non-music formats like photos, videos stored in the Micro SD card might cost
extra time on identification.
d) Playing high bitrate files or DSD files from slow micro SD card might cause stuttering. Class 10 or
above genuine micro SD cards are recommended.
e) Disordered files (such as various APE albums and CUE files all put into one folder) might slow
down the loading speed. It's recommended to create folders in this method: first create folder of
different artists then create subfolders of different albums under the artist folder.
f) Different formats or bit rate files stored together might increase processing time. It's
recommended to create different folders to store different format files and choose playback by
folders to avoid X7 switching decoder frequently.
Why does the X7 get a little hot in operation?
A: The X7 utilizes an SoC with high clock speed, a separate DAC, and (also separately) a high power
headphone amplifier and independent analog volume control in the amplification stage, thus
dissipating way more power than consumer DAPs typically performing computation, DAC and
amplification all on the SoC. Apart from outputting more power to your headphones, a lot of this
power is also dissipated as heat, thus causing the X7 to heat up slightly in operation; but this does
not endanger the X7 or the listener in any way.
Why can’t I go to the homescreen by pressing the home button?
37
A: Please check the X7 operation mode you are currently in by pulling down the settings menu
from the upper right of the touchscreen. If you’re in Pure Music mode, tap on the mode icon to
switch to Android mode, after that you will be able to access the Android homescreen.
Note: You can pull down from the upper right of the screen twice to enable the Quick settings menu and view the
current system mode.
Why can’t I see the Quick settings menu when I pull down from the top of the touchscreen?
A: There are two levels of pull-down menus. After the first pulling down, you will see the
notification panel and after the second pulling down you will see the Quick settings menu.
Does the X7 support 256GB micro SD cards?
A: Yes.
Does the X7 coaxial digital output support DoP? At what rate?
A: Yes. The DoP output can be supported at up to 2.8MHz/1bit (DSD64).
Why can my X7 not receive OTA updates / why is the OTA update so slow?
A: The update download may be slow owing to network constraints, at the FiiO server’s end, in the
intermediary network, at your Internet ISP, your WiFi router, or owing to poor WiFi reception by
the X7 (move closer to the router / hotspot). In any case, you may press the Home button to
dismiss the update download progress bar and continue using the X7 normally while the update
downloads. You may even switch the X7 off and on and the update download will continue.
Why sometimes it shows "0 new songs added to media library" after updating?
A: X7 has adopted the incremental update method. If the songs had already been added to
library, then they wouldn't be added in the next scanning. Therefore it would show "0 song
added to media library" after the uupdate. And this is not an update failure. Because of the
incremental update scheme, the player is able to support the "Newly added" function and also
save the scanning time.
38