Firmware

User contributions

Firmware release notes

• Firmware_release_notes Go here to read all firmware release notes.

Update procedure

When using MIDI-over-USB the transfer speed can be increased significantly by setting "Milliseconds between buffers" to 20 ms and "Delay after F7" to 20 ms.

Using MIDI-OX

When using MIDI-OX (Windows) to send firmware to the Axe-Fx II, be aware that its default settings may cause a buffer overrun error. Change Low Level I/O Buffers size to 256, and number to 16, and Milliseconds between buffers to 90.

Updating presets after a firmware update

Updated firmware may cause changes in your presets. Read the firmware release notes and verify your presets.

Programming language

The firmware is coded in C and assemby. Source