SP-404MKII System Program ( Ver.1.15 )

Please check the version of the system working on your SP-404 MKII before downloading the archive file.
  1. Hold down [ SHIFT ] and tap the pad [ 13 ].
    The [ UTILITY MENU ] screen appears.
  2. Turn the [ PUSH ENTER ] knob to select [ SYSTEM ], then press the [ PUSH ENTER ] knob.
  3. Turn the [ CTRL 3 ] knob all the way clockwise.
    The version information is displayed on the screen.
  4. Press [ EXIT ] to go back to the initial screen.

[ Ver.1.15 ] APR 2022
Bug Fixes
  • Fixed a bug in which selecting the MFX "Tape Echo" would freeze under certain conditions.
  • Fixed a bug in which the MIDI IN jack would freeze when receiving a non-standard signal.
[ Ver.1.14 ] JAN 2022
Additional Functions / Functionality Improvements
  • Sample (pad) playback can now be independently muted (Pad Mute).
    (Hold down [SHIFT] + [REVERSE] and select the sample you want to mute.)
  • Pad-muted samples can now be monitored via headphones (CUE).
    ( [UTILITY] > [GENERAL] > [Pad MUTE] > [Master] )
  • The PITCH and SPEED parameters of multiple samples in a mute group can now be changed simultaneously.
    (At the PITCH/SPEED screen, hold down [COPY] and change the parameter.)
  • Samples selected in the chromatic mode can now be played by MIDI input from an external source (CH16: C2 [36] through C4 [60]).
  • The end point of a sample can now be set automatically during sampling or resampling by pressing [START/END] (END SNAP).
  • It is now possible to change to the pad mode (for sample playback by pressing the pads) by pressing the [HOLD] button while in the DJ mode.
  • It is now possible to change the bus destination by holding down [REMAIN] and pressing [CUE] (pad 14 or pad 16) while in the DJ mode.
  • Note numbers received via MIDI IN during pattern recording can now be simultaneously recorded in the pattern.
  • During pattern recording, the GATE parameters of respective samples can now be changed.
  • In the PATTERN EDIT mode, patterns in a loop passage can now be deleted as a group for each respective pad.
  • Patterns can now be changed immediately during pattern playback by holding down [SUB PAD] and selecting a different pad.
  • Note numbers corresponding to pads can now be output externally via MIDI OUT during pattern playback.
    ( [UTILITY] > [MIDI] > [SEQ Note Out] > [ON] )
  • The display can now be turned off after a specified interval has elapsed.
    ( [UTILITY] > [GENERAL] > [Scrn Saver Type] > [DispOff] )
  • How samples are played back at switching between patterns during pattern playback can now be specified.
    ( [UTILITY] > [GENERAL] > [PTN Change mode] )
  • The displayed time of popups can now be set.
    ( [UTILITY] > [GENERAL] > [Pop-up Time] )
  • The gain for audio output via PHONES OUT can now be set to a lower level.
    ( [UTILITY] > [GAIN] > [Phones Out] )
  • The BPM SYNC parameter for all samples in a bank can now be set to ON or OFF.
    ( [SHIFT] + [BPM SYNC] )
  • The GATE parameter for the [EXT SOURCE] pad can now be set and can now also be recorded in a pattern.
  • Operation when split samples are assigned to respective pads in the CHOP mode has been improved.
  • Operation when importing samples from an SD card has been improved.
  • Buttons that are not used in a live performance can now be disabled (LIVE MODE).
    (Hold down [SHIFT] and press and hold [REMAIN] for 3 seconds or larger.)
Bug Fixes
The following bugs have been fixed.
  • During sample playback (GATE set to ON and HOLD set to ON), playback stops when the BUS destination is changed while pressing [REMAIN].
  • During pattern recording, in rare cases, the final note sometimes fails to be recorded.
  • When a sample having a fixed velocity is played in the chromatic mode, the velocity is unfixed.
  • Other minor bugs.
[ Ver.1.13 ] NOV 2021
Functionality Improvement
  • Velocity can now be set to a fixed value for individual pads.
Bug Fixes
The following bugs have been fixed.
  • Minor bugs.
[ Ver.1.11 ] OCT 2021
Additional Functions
  • A Skip Back Sampling function has been added.
  • A Pattern Chain function has been added.
  • A customization function for the opening image has been added.
  • A customization function for the screensaver has been added.
  • INPUT FX have been added, for an increase from 2 types to 16 types.
  • The Favorite numbers for BUS FX have been expanded from 4 to 16.
  • An Effect Grab function has been added.
  • An EFX knob mode has been added.
  • A function for swapping the effects assigned to BUS 1 and BUS 2 has been added.
Functionality Improvements
  • During sample editing, it is now possible to listen to a preview several seconds before an end point.
  • During pattern playback, it is now possible to press the [REC] button and shift to pattern recording.
  • It is now possible to move from the 16 Velocity/Chromatic mode to the Resample mode.
  • Multiple samples can now be imported from an SD card in one group.
  • Previewing is now possible when importing samples from an SD card.
  • Subfolders are now supported when importing samples from an SD card.
  • The content of the screen display in the DJ mode has been improved.
  • The displayed content of effect parameters has been improved.
  • The number of sounds produced during ROLL playback has been improved from 1 to 4 samples.
  • The sampled input source is now selectable (Mix or ExtIn).
  • A sample after a CHOP operation can now be overwritten.
  • The parameters subject to a factory reset are now selectable (ALL DATA or SYSTEM).
  • The color of LEDs on the 16PAD can now be set as desired.
  • The GATE parameter for all samples in a bank can now be switched on and off.
  • All samples in a bank or all patterns in a bank can now be copied to another bank or deleted.
  • The destination bus can now be set as a group for all samples in a bank.
  • It is now possible to specify the project to load when starting the unit.
  • The function of the [SUB PAD] button in the Sample mode can now be specified.
Bug Fixes
The following bugs have been fixed.
  • Minor bugs.

  • SP-404 MKII
  • An SD card
  • A personal computer with a SD Card Reader/Writer.

  • Never apply this update data to any product other than the SP-404 MKII. This update data may destroy the data or system program of other products.
  • Never power-off your SP-404 MKII while the update is in progress!
    If a power failure or similar accident occurs during the update process, the SP-404 MKII won't be able to start up in normal operating mode. This will require servicing, so you will need to contact Roland service center near you if this occurs.
  • We regret that we are unable to answer questions regarding the update procedure using this system program. Please perform the update responsibly, following the directions given in this document.

Please open/extract the downloaded "" file on your computer to get the "sp404mk2_sys_v115" folder.
Please make sure you have unzipped the downloaded update file.

  1. Format an SD card as described in "Formatting an SD Card" of "SP-404 MKII Quick Start".
  2. Copy the update files (SP404MKII_APP0.bin, SP404MKII_APP1.bin) to the root folder of the SD card described above using a personal computer.
  3. Insert the SD card described above into the SD card slot on the unit.
  4. Hold down [ SHIFT ] and turn on the power.
    [ UPDATE SURE? ] is displayed on the screen.
  5. Press the [ PUSH ENTER ] knob.
    The update starts.
    * Never turn off the power while the update is in progress.
    When [ UPDATE COMPLETE! ] appears, the update has finished.
  6. Turn the SP-404 MKII power off and remove the SD card from the SP-404 MKII.
  7. Please verify the version number "1.15" with the procedure described in "HOW TO TELL THE VERSION" part of this document.


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