ZOOM B3n Multi-Effects Pedals Firmware 2.20 Jun 15, 2020
... and “MIDI OUT” fields to open lists of MIDI devices and select “ZOOM G Series” for both. If nothing is shown in the fields, click [Rescan Device] button. 5. Click the [Execute] button to start the firmware update. 5.1. Do not disconnect the USB cable while the firmware is being ...