does "lirc-rpi.dtb" exist in the /flash/overlays folder?
yes, I use the original one from berryboot, and even tried to replace it with librelelec 7.900.06's, but nothing happened, i assume it is a berryboot problem, because when i use libreelec 7.900.06 into sd, it worked, but with berryboot, it did not.
any solutions?