I'm not sure what transmitter you're using. if the betafpv (white) one then a pre built would need frsky rx with d8 in order to bind.. IMO I'd recommend a better radio. i.e. with internal 4 in 1, crossfire or elrs. Another rabbit hole of learning. but generally you'll have to at least set up your switches in betaflight with a prebuilt.

It's hella fun! Little rocket for sure! was actually my first build

This Forum is gonna be 🔥

Thanks for creating great groups and places to get information. I've been slowely trying to get away from FB and things like this and discord help tremendously 🍕