Is the power cord properly connected? Connect the power cord to a power outlet, then press and hold the POWER button to turn on the power.
Also, if the [STANDBY/ON] indicator flashes and the power does not turn on, in some cases normal operation can be restored by disconnecting the power cord, waiting at least 1 minute, then reconnecting the power cord. If the same symptoms persist, disconnect the power cord, then request repairs.

Is the LEVEL/DEPTH control set to an appropriate position?
Turn the LEVEL/DEPTH control clockwise or counterclockwise.

Is the FILTER control set to an appropriate position?
Turn the FILTER control clockwise or counterclockwise.

There may be a problem with your wireless environment.
-When using this unit in the access point mode, try moving the mobile device closer to this unit.
When using this unit in the WLAN client mode, try moving this unit closer to the wireless LAN router and the wireless LAN router closer to the mobile device.
-If there is another wireless LAN router, a microwave oven, wireless mouse, wireless headphones, cordless telephone, Bluetooth device, etc., (a device using the same 2.4 GHz frequency band) in the room, try moving that device away from this unit and the mobile device.
-Try changing the wireless channel. For directions on doing this, see the operating instructions.
-When using WAV or AIFF files, try changing to MP3 or AAC files.
-If large amounts of data are being transferred by wireless connection nearby (for example for high picture quality net video playback), try stopping data transfer.

-For some tracks, it may not be possible to measure the tempo.
-With Sample Launch samples, the tempo is not displayed by design.

1. The dedicated driver software must be installed on the computer beforehand. For details, see "Installing the driver software" in the operating instructions.
2. This unit and the computer must be connected properly. For details, see "Connecting this unit and computer" in the operating instructions.
If the computer can still not be connected properly, quit the DJ application, disconnect the USB cable, then reconnect the USB cable and relaunch the DJ software.

When this unit is connected to a computer (Windows) for the first time or when it is connected to a different USB port on the computer, the message "Installing device driver software" may appear on the computer's screen. Wait awhile as such until the message "Device prepared for use" appears.

-[Connect to Windows Update to search for hardware] may appear during installation. If so, select [No, do not connect now], then click [Next] to continue installation.
-[Select the installation method] may appear during installation. If so, select [Install software automatically (recommended)], then click [Next] to continue installation.
-The [Windows Security] screen may appear during installation. If so, click [Install driver software] to continue installation.

1. The designated driver software must be installed beforehand in order to output sound from a computer to this unit. For details, see the operating instructions.
2. This unit and the computer must be connected properly. For details, see the operating instructions.
If connections cannot be properly established, quit the DJ software, unplug the USB cable, then plug the USB cable back in and relaunch the DJ software.
3. This unit must be selected in the DJ software’s audio output device settings. For details on making the settings, see your DJ software’s operating instructions.

-Settings on this unit
1. Press the MIDI button, then press the rotary selector.
2. This unit’s [DECK, PHONO/LINE] selector switch must be properly set. Set the [DECK, PHONO/LINE] selector switch to the [DECK] position.

1. Connect the computer you want to control with MIDI signals to this unit by USB cable.
2. If necessary, set the mixer mode from UTILITY.
When the mixer mode is set to “XDJ-AERO”, the sound can be mixed with the XDJ-AERO’s mixer. (In this case MIDI control is not possible with XDJ-AERO’s mixer.)
When the mixer mode is set to “PC”, the sound can be mixed with the DJ software.
(In this case, the XDJ-AERO’s mixer is the MIDI controller.)
3. Press this unit’s MIDI button, then press the rotary selector.
4. Make the audio settings on the DJ application.
When the mixer mode is set to “XDJ-AERO”:
　Ch1(L)：PIONEER XDJ AERO1
　Ch1(R)：PIONEER XDJ AERO2
　Ch2(L)：PIONEER XDJ AERO3
　Ch2(R)：PIONEER XDJ AERO4
When the mixer mode is set to “PC”:
　Master Out(L)：PIONEER XDJ AERO1
　Master Out(R)：PIONEER XDJ AERO2
　Monitor Out(L)：PIONEER XDJ AERO3
　Monitor Out(R)：PIONEER XDJ AERO4
5. For directions on making other MIDI settings, see the operating instructions for the DJ software you are using.

This unit operates when the computer restarts from the sleep or standby mode, but your DJ software may not. If not, quit the DJ software, disconnect the USB cable, then reconnect the USB cable and relaunch the DJ software.

At [Control Panel], check that the account type at [User Account] is set to [Computer Administrator]. If not, installation is not possible.

Installation is possible by inputting the administrator's name and password even if the account type is not [Administrator].

1. Sound skipping can be reduced by adjusting the buffer size.

2. When you are using a notebook computer, the computer's performance may be intentionally reduced by the power saving function. Use the computer with its AC adapter, not on its battery.

-Press the TIME button while pressing the SHIFT button. When the quantize function is on, [QUANT] is displayed on the LCD.
-Even for tracks that have been analyzed with rekordbox, the quantize function will not work if the tracks have been loaded in the folder browsing mode. Load them in the library browsing mode.
-The quantize function does not work with Sample Launch samples.

Driver software Ver. 1.0.0 does not support Mac OS X 10.4 or earlier. The latest driver software can be acquired at the Pioneer DJ support page.

Please confirm the audio output level of DJ software. See the DJ software's operating instructions for details about the audio output level.

If you have turned this unit off in the access point mode then turned it back on, recheck the connection on the mobile device or computer. The mobile device or computer may have connected to a different nearby access point.

If you have turned this unit off in the WLAN client mode then turned it back on, recheck the connection to the wireless router to which this unit should be connected. This unit may have connected to a different nearby wireless router.

-The function for loading from USB memory devices is supported on firmware version 2.00 or later. Update to the latest firmware version from the support page.
-Only lists in playlists can be loaded from USB memory devices. Create the playlists in advance and register them in a bank.
* For the details of the procedure, see the bank creation guide.

-The jog dial does not work for external inputs (PHONO/LINE).
-The jog dial included on this unit is of the static electricity type, so it may not respond when wearing gloves, etc.

When AUTO MIX is turned on (when the LED is flashing), the crossfader does not work. It also does not work when the crossfader curve switch is set to "THRU".

The TIME/REMAIN, AUTO CUE, MASTER TEMPO, TEMPO RANGE, QUANTIZE and the various UTILITY settings are only stored in the memory 5 seconds after they are made. If the power is set to standby less than 5 seconds after they are set, they are not stored.
When settings are changed, wait at least 5 seconds before setting the power to standby.

The behavior differs according to the mobile device's specifications.
When an access point with a strong signal (one that has been connected to in the past, one with open security, etc.) is detected on the list of wireless (Wi-Fi) connections set on the mobile device, the connection switches automatically.

This depends on the mobile device's specifications, but to avoid this operation and prevent the mobile device connection from switching by itself, delete that access point from the list in the wireless (Wi-Fi) settings.

-The XDJ-AERO may not be set to the access point mode. Set it to the access point mode.
-When using this unit in the access point mode, try moving the mobile device closer to this unit.
-If there is another wireless LAN router, a microwave oven, wireless mouse, wireless headphones, cordless telephone, etc., (a device using the same 2.4 GHz frequency band) in the room, try moving this unit and the mobile device away from such devices.
-If large amounts of data are being transferred by wireless connection nearby (for example for high picture quality net video playback), try stopping data transfer.

The link indicator does not light when a wireless device (smartphone, tablet, computer, etc.) and the XDJ-AERO are connected by wireless connection. The link indicator only lights when the XDJ-AERO and rekordbox (iOS/Android or on a computer) are connected by link.

The XDJ-AERO's track information may not be in a language supported by the connected DJ software. See the DJ software's operating instructions for details about the range of languages supported.

For tracks that start right off with a high volume, the point at which the set volume is detected may not change even when the auto cue level is changed. In this case, the cue position will be the same.

Either the music file you are using is in an unsupported format or there is a problem with the data. For supported formats, see the operating instructions.

For VBR files, the XDJ-AERO may not be able to tell the track's length immediately, in which case some time is required until the time is displayed.

It could be one of the following three cases:
1. There is not enough free space on the device.
2. The device is write-protected.
3. The track has been selected for 60 seconds or less. (The XDJ-AERO is designed so that tracks are stored in the HISTORY when they are selected for more than 60 seconds. They are registered even when operations other playback are performed or when in the in the pause mode for more than 60 seconds.)

The LANGUAGE setting may not be right. Set the LANGUAGE properly on the XDJ-AERO's UTILITY screen.

The LANGUAGE setting is for displaying characters of track names, etc., written in local codes other than Unicode. The UTILITY screen display is fixed to English.

Is the LOAD LOCK function turned on?
Set [LOAD LOCK] at the [UTILITY] screen to [OFF], or pause the currently playing track, then load tracks.

This is a warning against stopping playback accidentally.
If the USB STOP key is released before playback stops, playback continues.

This is by design.
This unit operates with a BPM of 120 when the sample's tempo is 0.0%.

The variable range in the wide mode is -100% to +16%.

When you slowly move your palm over the jog dial, it may respond even though you don't touch it, depending on the detection sensitivity setting.
Keep your hand away from the jog dial except to touch it.

The colors and brightness may appear different according to the angle at which you look at it.

If the Wi-Fi board is replaced, the SSID and password will change. Reset them following the included SSID/password checking guide.

When rekordbox (iOS/Android) is running and the telephone or another application is used in the foreground, rekordbox (iOS/Android) processing continues in the background. However, applications running in the background may be suspended or stopped due to iOS or Android operating system control.
If you have used the telephone or another application, quit it promptly and set rekordbox (iOS/Android) back to the foreground.

When rekordbox (iOS/Android) is running and the message dialog of another application is displayed in the foreground, rekordbox (iOS/Android) processing continues in the background. However, applications running in the background may be suspended or stopped due to iOS or Android operating system control.
If a message dialog is displayed, close it promptly and set rekordbox (iOS/Android) back to the foreground.

The sync operation may not be working for one of the reasons below.
-Was the track loaded in the folder browsing mode? The sync operation can only be performed if the track is loaded in the library browsing mode.
-The sync operation is not possible if slave deck's BPM is less than the master deck's BPM, even if the tempo is +16%. In this case, the message "OUT OF RANGE" is displayed on the LCD.

When the sync function is turned on for the deck that is not the master deck, that deck's tempo slider is disabled.

To prevent sudden changes in the tempo, if the tempo (BPM) being played on the master deck does not match the tempo corresponding to the position of the tempo slider, the unit is designed so that the tempo does not change until the tempo slider is set to the position corresponding to the currently playing tempo.

The BPM value corresponding to the tempo slider's position is displayed on the LCD's playing speed display. Operate the tempo slider to match this with the value displayed in the square frame directly below this. After this is done, the tempo slider can once again be operated.

To keep the tempo from changing suddenly directly after the sync function is turned off, the unit is designed so that the tempo of audio output does not change when the tempo slider is operated until the tempo at the position of the tempo slider matches the tempo of audio output.

The BPM value corresponding to the tempo slider's position is displayed on the LCD's playing speed display. Operate the tempo slider to match this with the value displayed in the square frame directly below this. After this is done, the tempo slider can once again be operated.

The playlist that is played continuously with the auto mix function is set when a track is loaded from a playlist after pressing the AUTO MIX button.
To change the playlist that is played continuously, turn the auto mix function off then back on, then load a track from the playlist to which you want to change.

Set the [MIC ATT.] and [MIC LEVEL] controls to the proper positions.

The caching meter only works with MP3 files that are up to about 10 minutes in length. It does not work with longer files.

The back cue function only works when cue points are set for the currently loaded track. Are cue points set? If not, set them. For details, see the operating instructions.

Normal operation can sometimes be restored by unplugging the power cord, waiting at least 1 minute, then plugging the power cord back in. If the same thing happens after this is done, unplug the power cord and request repairs.

Check that this unit, the mobile device and the computer are all connected to the same access point.

On this unit, the SSID of the currently connected access point is displayed at [UTILITY] -> [WLAN INFORMATION] -> [SSID].

The Load Lock function does not affect loading of tracks in the DJ software performed on the computer.

Mixer mode: For a computer, the adjustable level range of this unit’s TRIM, EQ and fader controls depends on the DJ software’s specifications.

Set the DJ software’s headphones MIX knob all the way to the CUE side.

Please update to the latest firmware of XDJ-AERO from the support page.

Please update to the latest firmware of XDJ-AERO from the support page.

Please update to the latest firmware of XDJ-AERO from the support page.

Try taking the following measures, in this order:
-Properly select this unit’s SSID on the wireless device.
(On this unit, UTILITY -> WLAN INFORMATION -> SSID)
-Properly input this unit’s password on the wireless device.
(On this unit, UTILITY -> WLAN INFORMATION -> PASSWORD)
-Change the wireless channel and reconnect.
(On this unit, UTILITY -> WLAN SETTING -> OTHERS -> CHANNEL No.)
-Turn the power of this unit and the wireless device off then back on, then reconnect.

Try taking the following measures, in this order:
-Properly select the access point’s SSID on this unit.
-Properly input the access point’s password on this unit.
-Change the wireless channel on the wireless LAN router (access point) and reconnect.
-Turn the power of this unit and the wireless device off then back on, then reconnect.
*For information on the wireless LAN router or products of other manufacturers, see the respective devices’ operating instructions.

Connect this unit and the wireless devices to the same access point.
*If connection of this unit to the access point you are trying to connect to fails, this unit is automatically connected to a previously connected access point in the connection history.
*The SSID of the access point this unit is connected to can be checked at UTILITY -> WLAN INFORMATION -> SSID.

If audio is not output or you cannot control rekordbox when using Windows, please see here to solve the problems.