Kastle 2 FX Wizard
Release Notes 

kastle2-fx-wizard-1.5

Changes:
- Added Citadel compatibility

To check the firmware version, listen to the audio output and boot Kastle 2
into the Test Mode: Hold FX MODE button and turn power ON.
A voice will announce the version.

How to update:
1) Connect Kastle 2 with a USB-C cable to your computer
2) Turn OFF the power switch (left)
3) Hold SHIFT and turn ON the power switch (right)
4) Kastle 2 will boot to the update mode (no sound)
5) Copy the firmware .uf2 file to the RPI-RP2 disk showing on your computer