trouble connecting GameSir with FPV. I can't figure it out.

[BK5315]

I'm unable to connect the GameSir with Tello FPV. I can see that the GameSir is recognized, but it won't connect. I've cleared the Bluetooth cache, restarted, and just can't get it to work.

 

[Hacky]

Do not connect via Bluetooth in advance.
Start app first and then switch on the controller.