Pairing Code Screen not show on ConnectableDevice

i am also working on TV Connect App, I am able to fetch list SmartTV but after connect connectable device not shown pairing code,I have code but device not show any pairing code

self.connectedDevice = obj self.connectedDevice?.delegate = self self.connectedDevice?.setPairingType(DeviceServicePairingTypeMixed) self.connectedDevice?.connect()

Try with pairingType DeviceServicePairingTypeMixed, DeviceServicePairingTypePinCode and DeviceServicePairingTypeFirstScreen but no luck

is there any capability or permission require for pairing?