qTone update procedure

• 1.
  Download & install CH340 driver

  MAC WIN

  Do not install the driver on macOS 10.14 or newer. It is already built in, and installing it causes a conflict.
• 2.
  Connect qTone via micro USB cable. The cable must support data transfer.
• 3.
  Press Upload button.
• 4.
  Select USB port from the list. Press "Connect".