Manuals

Revert to factory settings and delete all presets/settings

This manual gives you detailed information on how to reset your device and what will be deleted.

What will be deleted?

  1. KLANG show files
  2. Settings:
    • Audio Routing
    • Sync Source
    • Sample rate
    • EQ on/off
    • Fixed IP
    • VLAN
    • Device name
  3. On :kontroller
    • Menu, Bank and Mix restrictions
    • Controlled mix
The :vokal+ channel boost license will not be affected by a factory reset or a replacement of the internal microSD card.

Via KLANG:app

If you are already seeing the KLANG hardware you want to configure in KLANG:app, use this method:

  1. In KLANG:app, login to the device you want to revert to factory reset.
  2. Go to CONFIG > INFO > SET > Factory Reset.
  3. Wait until the unit has fully booted.

On :konductor GUI

  1. On the front display, make sure the screensaver is gone.
  2. Go to CONFIG > INFO > Set Menu > Factory Reset.
  3. Wait until the unit has fully booted.

via Reset Button

2nd Generation KLANG Processors only | KOS 5.7 required

This guide explains what the LED colors mean on a KLANG processor without a display. It helps users understand the network status, connection state, and audio clock validity — even before connecting a KLANG:app.

LED States

These LED states are shown immediately after boot, and if no KLANG:app or console is connected. They are also shown when the connection is timed out, i.e. no active connection to this device has been present for quite some time.
Once connected, the LED becomes solid purple, or it blinks purple/red when the audio sync is not valid.
Diagnostic Mode | Blinking LED StateMeaningNotes
Half-Dim PurpleIP assigned via DHCPDHCP server provided a valid IP
BlueUsing link-local Auto-IPs: 169.254.x.x/16No DHCP, auto-assigned fallback IP
OrangeUsing a user defined Fixed IPManual IP set via KLANG:app or console, other than 192.168.1.200
WhiteUsing Default KOS IP192.168.1.200/16Default fixed IP that works well with default DiGiCo console IP addresses
Pulsing PurpleWaiting for :app/:kontroller/console to connect…Will overlay one of the above colors as base status
Button presses are acknowledged by a yellow LED blink for each button press after the detection of the button press sequence.

Once a KLANG:app or console connects, the LED indicates connection and audio clock status:

Connected LED StateMeaning
Solid Purple✅ Connected to at least one :app, :kontroller or console
Blinking Purple/Red⚠️ Audio clock is invalid (e.g., no sync)
The LED will always default to diagnostic mode after, as long as no app is connected. For network troubleshooting, power cycle the unit and observe the LED before connecting.

Basic Configuration with Reset Button Presses

Reset Button on KLANG processors allows to trigger often used configuration features with minimal GUI.

Button PatternActionNotes
Single Short PressWrite Logs & Backup to USBFlash green (short) to confirm
Long Press (>3s)RebootFlash red → solid red → reboot
Double Short PressRevert to DHCPFlash purple 2x → confirm with dim purple
Triple Short PressSet default fixed KOS IP 192.168.1.200Flash white 3x → confirm with solid white
Five Short PressesEnter Factory Reset modeLED blinks blue/purple rapidly
Then Long PressConfirm Factory Reset + RebootFlash red rapidly before reboot

On :kontroller

  1. Press and Hold CONFIG menu for 3 seconds. This only works if the CONFIG menu is not disabled on that :kontroller. Alternatively, use “via KLANG:app“, see above.
  2. In the CONFIG menu > NET > Expert > Reset Factory defaults.

USB Update with “deletePresets”

Fallback Method for 2nd Gen. Processors and :kontroller

If you are unable to login, there is another way for :kontroller, :vokal, :konductor, and DMI-KLANG, and none of the above methods is applicable. Use the following procedure that involves a USB update with an additional file placed on the USB drive instead.

Step 1

Place an empty file deletePreset (no file extension) besides the two KOS Update files:

Download “deletePresets” File

deletePresets

Step 2

Run the USB KOS Update procedure:

Factory Reset for :fabrik & :vier

Fallback Method

For :vier and :fabrik, follow the USB recovery procedure for 1st generation KLANG processors:

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