DD-500 System Program (Ver.2.02)

How to tell the version
Please check the version of the system working on your DD-500 before downloading the archive file.
  1. Hold down the [ EXIT ] button , and connect a plug to the INPUT A/MONO jack. Then it will turn on.
    * Press and hold the [ EXIT ] button until "DD-500" appears on the display.
  2. The display indicates the current system version.
  3. Disconnect the plug from the INPUT A/MONO jack.
* Don't perform the update if the product is already up-to-date.

Update history
[ Ver.2.02 ] MAR 2021
Bug Fixes
The following bugs were fixed.
  • The ROLL function is sometimes activated in a BANK UP operation has been corrected.
  • The MODE setting cannot be changed when LOOPonOff has been set with CTL1 FUNC or CTL2 FUNC has been corrected.
  • Direct sound is output when effects are off even when SYSTEM --- OUTPUT is set to "DIRECT MUTE" has been corrected.
  • The problem of noise contamination sometimes occurring when LOOPER --- LOOP MODE is set to "48k MONO" or "48k ST" has been corrected.
[ Ver.2.01 ]
Functionality Improvement
  • Additional display options have been added to A/B SIMUL mode. You can select both MS and BPM options use the [DOWN] / [UP] buttons to switch the screen.
Bug Fixes
The following bugs were fixed.
  • The carryover function does not work when receiving EFFECT SW CC from MIDI.
  • The effects may not be able to be turn on / off when receiving EFFECT SW CC via MIDI.
    System error occurred due to parameter setting in PATTERN mode.
  • Issue fixed where the delay sound sometimes continues to sound when switching banks in A/B SIMUL mode.
  • Other problems related to effect switching and MIDI reception have been fixed.
[ Ver.2.00 ]
  • Please refer to the "Parameters Added to the DD-500 (Ver.2.00)" for detailed information in the [ Owner's Manuals ].
Change the specification
  • The controller numbers for MIDI messages have changed as follows.
Status Ver.1 Ver.2
[A] switch
Controller Number 82 ---
[B] switch
Controller Number 83 ---
Delay on, Bypass
Controller Number 21 Controller Number 27
--- Controller Number 17
[TAP/CTL] switch
Controller Number 84 Controller Number 82
Controller Number 17 Controller Number 18
[E.LEVEL] knob
Controller Number 18 Controller Number 19
[TONE] knob
Controller Number 19 Controller Number 20
[MOD DEPTH] knob
Controller Number 20 Controller Number 21
EFFECT A (Simul mode)
--- Controller Number 28
EFFECT B (Simul mode)
--- Controller Number 29
[ Ver.1.11 ]
Additional Function
  • Support for DD-500 Editor Added
[ Ver.1.10 ]
Additional Functions
  • A TEMPO HOLD function was added.
    This lets you keep the tempo information from being changed when switching patches.
  • A LOOP LEVEL adjustment function was added.
    This makes it possible to adjust the LOOP LEVEL value for phrase loops.
Functionality Improvement
  • A clear operation for phrase loops was added.
Bug Fixes
The following bugs were fixed.
  • Executing a bank change with CTL FUNC remaining enabled at "FSW MODE = SIMUL" sometimes results in CTL FUNC failing to stop.
  • When a patch change is made, the immediately previous delay sound sometimes plays.

What you will need to update your DD-500
  • DD-500
  • USB cable (It must be compatible with USB 2.0 Hi-Speed.)
  • A computer with a USB 2.0 connector ( Windows, Mac )
  • AC Adaptor ( PSA Series )

Caution when performing the update
  • We recommend that you back your user data up to your computer before you perform the update. If a problem occurs and your user data is lost, you will be able to restore the data by reloading the data you saved. For details on the procedure, refer to the "Transmitting Data to an External MIDI Device" section in the owner's manual.
  • Never apply this update data to any product other than the DD-500. This update data may destroy the data or system program of other products.
  • Be sure to power the unit using the AC adaptor. Executing the update while running on only battery power may cause the update to fail and result in incorrect operation if the batteries go dead before the update finishes.
  • Never power-off your DD-500 while the update is in progress!
    If a power failure or similar accident occurs during the update process, the DD-500 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.

Getting the update file
Please open/extract the downloaded " " file on your computer to get the update files in the " dd500_sys_v202 " folder.

Procedure for the update
* You must not do the following operations on restoring. Doing so might make your computer freeze, or might result in the loss of all of the DD-500's data.
  • Turn off the DD-500's power.
  • Disconnect the USB cable.
  • Allow your computer to enter suspend (standby) or hibernate mode, restart it, or shut it down.
  1. Connect an AC adaptor to your DD-500.
    * The DD-500 will not operate on USB bus power.
  2. Set the [ FEEDBACK ] knob, [ E.LEVEL ] knob, [ TONE ] knob and [ MOD DEPTH ] knob to the minimum position.
  3. Hold down the [ TIME/VALUE ] knob, and connect a plug to the INPUT A/MONO jack.
    Then it will turn on and the display will indicate the "Connect the USB cable.".
  4. Use a commercially available USB cable to connect the DD-500's USB connector to your computer's USB connector.
  5. Open the "BOSS_DD500" drive.
    [ Windows users ]
    Within My Computer (or Computer), open "BOSS_DD500" (or Removable Disk).
    [ macOS / OS X users ]
    On the desktop, open the "BOSS_DD500" icon.
  6. Copy (drag and drop) the "DD500ROM.BIN" and the "ROMINFO.TXT" in the "dd500_sys_v202" folder into the root directory of the "BOSS_DD500" drive.
  7. After the copy has been completed, unmount or remove the drive on your computer.
    With Windows
    Right-click on the "BOSS_DD500" icon in My Computer (or the "Removable Disk (*:)" icon) and execute "Eject."
    With macOS / OS X
    Drag the "BOSS_DD500" icon to the Trush icon in the Dock.
  8. Disconnect the USB cable.
    The message "EDIT:EXECUTE" will appear on the display.
  9. Press [ EDIT ] button to start the update process.
    While the update is in progress, the message "Updating..." is shown on the display.
  10. The message "Completed." will appear on the display when the update process completes.
  11. After you confirm the update completion with the "Completed." indication, remove the plug from the INPUT A/MONO jack. Then it will power off.
  12. Please verify the version number "2.02" with the procedure described in "How to tell the version" part of this document.


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