Help Needed: Issues with ELRS Receiver on Speedybee F4

im building my first quad and am having an issue. im using an elrs receiver on a speedybee f4 stack. it binded just fine but by controller wont do anything in betaflight. i used r6 and t6 on the fc. im assuming i would set the protocall on uart6 in beta flight. guna look through youtube. not sure about betaflight settings for the fc either. any help would be awsome