my board is the b650 gaming x ax v2, worked for me, not confirmed to work for you

folder with fix

i made this and pretty much it force flashes the correct firmware so that the rgb should start working again

all you have to do is download all and right click flash.bat and run it as administrator

if you need to, you can swap the bin file in the folder with any of these that appear to match your boards description

BIN FILES

if it doesnt start working with the default bin file i put in the folder with the fix, keep trying different bin files from the bin files folder, but make sure there is only one bin file in the folder with flash.bat

THE BIN I PUT IN THE FOLDER IS FOR THE ITE 5701, IF YOU HAVE A DIFFERENT ITE RGB CHIP (IDENTIFY IT USUALLY ITS NEAR THE BOTTOM PCIE SLOTS) THEN USE A DIFFERENT BIN FILE FROM THE BIN FILES FOLDER