iConnectMIDI2+ firmware upgrade issues, stuck in boot loader mode - Mac

iConnectMIDI2+ firmware upgrade can only be done when the computer is connected to the USB 2 Device Jack on iConnectMIDI2+.


  1. Disconnect any devices on the iConnectMIDI2+ and disconnect the iConnectMIDI2+ from your computer.
  2. Open your Mac’s Audio MIDI Setup and remove any iConnectMIDI2+ you may find in the MIDI Studio Window.
  3. Re-connect the computer to iConnectMIDI2+ USB 2 Device Jack and open iConfig
  4. Config should recognize the iConnectMIDI2+ in boot loader mode and when selected from the 'Device selection' screen, it should prompt for firmware upgrade again.
  5. Accept to upgrade and iConfig should properly upgrade the device.