Users frequently seek R06.12.02 (or the similar R06.12.05) because versions starting from strictly enforce narrowband (12.5 kHz) spacing for certain frequencies.
Navigate to "Support Services" and then "Software and Licensing." Search for "Professional Series CPS" or "R06.12.02" to find the installer. Professional Radio Cps R06.12.02 Download
This software version is not for everyday consumer radios. It is intended for: Users frequently seek R06