Can I Revert My VCI-400SE to Original Firmware? Matías Padilla July 10, 2015 14:42 Updated Unfortunately there is no way to downgrade a VCI-400SE to stock firmware to add SeratoDJ compatibility. Related articles VCI-400SE Firmware Recovery Instructions (Bricked Unit) VCI-400SE Firmware Upgrade Procedure Can I Upgrade My VCI-400 to SE? VCI-400SE Stand Alone Mixer Update How Do I Set Up My VCI-400 SE?