Hello,
contact the support:
"service@adjgroup.eu"
The firmware: CON11 ; SEV08 ; BUF 08 ; DSP 25
has a bug and doesn't show CDA text.
The adj support will mail you a bugfix file to copy on an empty usb stick. Then boot the radius with the stick and it works!
The file is named: UDJ30X0952.hex