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Each of our products can be updated via software updates (rewrite software) to improve their working functions or add functionality.

Rewriting method of the firmware

  • What you need to rewrite
Additionaly to the software, a converter device will be necessary for your windows PC to communicate with our products. Here are the following:

TACHYON / AIRIA / TAO ··· update device kit (OP87052)
TAOⅡ ... TAOⅡ USB cable supplied with the 
unit Blaine ... Blaine unit dedicated update USB adapter (OP15025) and that comes with the TAOⅡ USB cable 
Windows PC (XP · I supports 32bit / 64bit OS of Vista · 7 · 8 · 8.1)

  • Update procedure of the new firmware
① Start by downloading the software required for your device below. Then install the software on your Windows PC.
Note that due to the Windows driver authentication service, your software might not fully install and might require you to manually install the drivers.
For this procedure, please go to the troubleshooting section at the bottom of the page.  
② Then, look for the latest firmware available for your device in the list below and download it on your PC.
③ Finally, start the "update tool" that you installed in ①, Then follow the instruction shown in the software to upload your new firmware to your device.
 It should be noted that each software has its own set of instruction. These instruction might not be displayed at the same location. Make sure to inspect the software interface.

List of Softwares

  • Tachyon / Tao dedicated
Acuvance Update-168 Ver.1.0 (Release date August 26, 2013) TACHYON Download

  • Tachyon Airia dedicated
Acuvance Update-8051 Ver.1.0 (Release date August 26, 2013) TACHYON AIRIA Download


  • TAOⅡ <Second> Brain unit dedicated

Acuvance V1.1                                                                                                                                                                                                                                                                                      Ver.1.1 (Release Date, October 29, 2013) TAOⅡ Download

Acuvance V3.5 (JAPANESE ONLY) Ver.3.5 (Published September 30, 2015) TAOⅡ Download

• The revamped graphic design, it improves the operating stability. (From Ver1.1) 
it is now possible of editing and printing the ESC setting data by · PC. (from Ver3.5 ) 

List of Firmwares:


e00129.kyc Ver.1.5 (Release date August 26, 2013) TACHYON Download

  • - Latest Performance improvement.

  • For TACHYON Earia


Upon using the Airia ESC please ensure the firmware correspond to your update device.
The firmware for TAO will not be compatible with the TAO II, and vice versa. 
Please make sure to choose according to your programming device for proper operation.

(TAO dedicated firmware)

B108121.kyc (0b.10.81.21) Ver.3.1 (Published September 25, 2013) TACHYON AIRIA Download

(TAO Ⅱ <Second> dedicated firmware)

B10f015.kyc (08.10.F0.15) Ver.4.2 (Published April 13, 2015) TACHYON AIRIA Download

- The throttle feel has been greatly improved from neutral to drive forward. [Important] if you are updating from the Ver.4.1 (B10f014.kyc) previous firmware, please note that the programming of the neutral function will be changed. For this reason, if you are updating from Ver.4.1 we recommend putting the vehicle on a stand with the wheels off the ground, as it might suddenly switch to forward/backward during the update process. Once the process is complete this phenomenon will stop. If trouble remain after updating, make sure to recalibrate your end point adjustment as explained in your ESC manual. 

  • TAOⅡ for <Second>

Ver.1.3 Ver.1.3 (Published August 4, 2015) TAOⅡ Download

· Added support for [i-Light] intelligent · LED light system.


Because of the major changes in this firmware update, it is necessary to format the SD Card provided with your TAO II for proper operation.
Unfortunately this operation will erase all the existing tunes and logs you might have saved on the card, therefore we are giving you access to this memo form to take notes of your tune prior to formatting the card.
Click here for the memo
We deeply appologize for this inconvenience.

※ Updating from Ver.1.2 or prior, multiple functions have been improved for accuracy [data logger] various kinds of data while running «battery voltage and motor rotation speed, throttle position · ESC temperature and motor temperature (when using a
temperature sensor for motor OP15015) · vehicle speed »we are now able to do real-time display on the screen.
[new features] sleep mode and ON / OFF and the ability to select the time of shut off. 


  • For Brain unit

Ver.2.0 Ver.2.0 (Published August 4, 2015)

- This update is corresponding to the i-Light] intelligent · LED light system

  • For TAO

(TACHYON / TACHYON AIRIA Compatible with both firmware)

P00211.pkc Ver.2.2 (Published September 25, 2013) TAO Download

- Improved performance. 
• The firmware working for both "TACHYON" and "TACHYON AIRIA" will have the following features removed. 
* Infrared radiation thermometer 
* Calendar Clock 
* stopwatch

(TACHYON dedicated firmware)

A00111.PKC Ver.1.2 (Publication date December 4, 2014) TAO Download

- For data link with the TACHYON only. 
Infrared radiation thermometer / calendar / clock / stopwatch functionscan be used.

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