Need help my jumper t8sg can’t bind FrSky receiver

New for drone,I have jumper T8SG radio. I just brough two bnf furibee 160mm and furibee nebula 230mm.
Both come with frsky receiver, one is frsky xm other one is frsky d8. I watch a lot YouTube and search but still can’t bind it. i have other drone is DSMX,flysky,toys it work..only frsky reciver. I have no idea why,now I have two brand new garbage here. otherwise I have to buy frsky radio.