Issues upgrading firmware on iConnectMIDI4+ on Mac and device is stuck in boot loader mode.
iConnectMIDI4+ firmware upgrade can only be done when the computer is connected to the USB 3 Device Jack on iConnectMIDI4+.
- Disconnect any devices on the iConnectMIDI4+ and disconnect the iConnectMIDI4+ from your computer.
- Open your Mac’s Audio MIDI Setup and remove any iConnectMIDI4+ you may find in the MIDI Studio Window.
- Re-connect the computer to iConnectMIDI4+ USB 3 device Jack and open iConfig.
- iConfig should recognize the iConnectMIDI4+ in boot loader mode and when selected from the 'Device selection' screen, it should prompt for firmware upgrade again.
Accept to upgrade and iConfig should properly upgrade the device.