But does your box have a Broadcom Chip/CPU otherwise it want be of any use.
FCC was developed for VU+ 4K stb only.
But I assume that Team BH adapted it to their OBH image and therfore it also was availible for all stb with a Broadcom Chip/CPU
Here is the ATV Info about the plugin
Fast change of channels in OpenATV image version 7.1 from date 05-28-2022 is installed by default, although deactivated, in case we want to use it we will access menu + configuration + reception + fast channel change

