OpenGD77 is popular DMR radio firmware.



OpenGD77 boot melody: Nokia Tune - 44,4,42,4,34,8,36,8,41,4,39,4,30,8,32,8,39,4,37,4,29,8,32,8,37,16,0,0 \\
OpenGD77 boot melody: Nokia Tune (faster) -50,4,48,4,40,8,42,8,47,4,45,4,36,8,38,8,45,4,43,4,35,8,38,8,43,16,0,0