How to upgrade the MCU of AeroTwist

This is a Micro-processor Update procedure

Note that the file name must be named TWISTMCU.bin. The system will not recognise the file if it is named differently. If the file you have is named in a different way, rename it to TWISTMCU.bin

Update procedure

For the steps of performing USB firmware update for MCU.

  • Plug the power supply into the unit.
  • Turn On the product by pressing the Power button.
  • Connect the Thumb drive (USB Stick) containing the “TWISTMCU.bin” file to the Micro USB – USB OTG cable.


  • Connect the cable to the micro USB port located on the Speaker.
  • Press and hold at the same time the power button and the plus button for 3 seconds.
  • Release the button as soon as the white LED will quickly flash
  • Press the Power button to start the product again.

Know update failures

Possible solutions
The white LED is steady ON after I have done the update.
  • Make sure the file is named correctly TWISTMCU.bin
  • There should be no other file in the memory stick apart from the TWISTMCU.bin
  • Make sure your memory stick has been formatted as FAT32

Website: DrivePro