Software Update (CA401)
This document contains instructions for updating the system software of the Kawai CA401 digital piano.
Please read these instructions thoroughly before attempting to perform the software update.
The update process will require approximately 7 minutes to complete.

 Checking the current software version
While the CA401 digital piano is turned off:
Press and hold the [ ] and [ ] buttons simultaneously, thenpress the [ ] (POWER) button to turn the instrument on.

ld
ho

ld
ho

The current software version will be shown in the LCD display.
If the version number is greater than or equal to the update
version, no further action is necessary.

Version number* Turn the instrument off and on to return to normal operation.

If the version number is lower than the update version, please
continue to follow the instructions below.

 Update requirements
This stage of the software update will require a Windows or macOS computer with internet access, and a USB type “B” to type “A” cable.

 Preparing for the update
After downloading the software update zip file, extract thecontents to a temporary folder (e.g. the Desktop).

CA401_v1xx.zipThe folder should contain four files.
FilenameDescription

CA401_****.dat

CA401 system software

CA401_update_en.pdf

Update instructions

kawai_dp_updater.app

Update tool for macOS

kawai_dp_updater.exe

Update tool for Windows

CA401_v1xx.zip

CA401_****.dat

CA401_update_en.pdf

kawai_dp_updater.app

kawai_dp_updater.exe

1. Turn on the piano in update mode
While the CA401 digital piano is turned off:
Press and hold the [ ], [ ], and [ ] buttons simultaneously,
then press the [ ] (POWER) button to turn the instrument on.
ldho1.

ldholdho

The piano will turn on in update mode, and the LED indicators
for the three pressed buttons will start to flash.

Software Update (CA401)
2. Connect the piano to the computer
Connect the piano to the computer using a USB type “B” to USB
type “A” cable.
“B” type(Piano)* Please refer to page 38 of the main CA401 owner’s manual for moreinformation.

“A” type(Computer)

3. Launch the Kawai DP Updater tool
Launch the Kawai DP Updater tool on the Windows or macOScomputer.

Kawai DP Updater

4. Select the update file and MIDI Out device
From the Kawai DP Updater tool window:
Click the [File Select] button, then select the CA401_****.datupdate file.
* The file should be stored in the temporary folder on the desktop.

Click the MIDI Out Device list and select [KAWAI USB MIDI].
KAWAI USB MIDI

* Note that the position of the USB-MIDI device within the list may vary
if other MIDI devices are also connected to the computer.

5. Start the update process
From the Kawai DP Updater tool window:
Click the [Update] button to start the software update process.
* The software update will take approximately 7 minutes to complete.
The update progress will be shown in the bottom of the window.

<< CA401_****.dat >>* During the update, do not use or attempt to launch other applications,and ensure that the Kawai DP Updater tool remains the front-mostwindow.

KAWAI USB MIDI

* During the update, the LED indicators for different buttons willcontinue to flash, however do not turn off the piano.

6. Finish the update
After approximately 7 minutes, the LED indicators for the [ ]and [ ] buttons will start to flash, and an [Update complete!]message will be shown in the Kawai DP Updater tool window.
Disconnect the USB cable, then press and hold the [button for 2 seconds to turn the instrument off.

] (POWER)

Perform the software version check (explained on the first pageof these instructions) to confirm that the update was successful.
ldhoWhen the instrument is turned on, the updated software will beused automatically.
* If this stage of the update is unsuccessful, please restart from step 1.

2.

Software Update (CA401)
 CA401 System software changelog

V1.0.5 (May 2023)-Fixed a bug that could cause a note to sound when the key was not played.

V1.0.4 (February 2023)-Fixed an issue with occasional "Update Required" dialog box appearing when connecting to the PianoRemote app via Bluetooth MIDI.

V1.0.3 (December 2022)-First production version.

Copyright © 2023 Kawai Musical Instruments Mfg. Co., Ltd. All Rights Reserved.