name of entity

[matteos1]

my samsung is ue48ju7500 but i but i can't control the tv. the state is idle

media_player.tv_ue48ju7500	idle	is_volume_muted: true media_duration: 0 friendly_name: [TV] UE48JU7500 supported_features: 21055

and does not respond to "entity_id": "media_player.tv_ue48ju7500", "media_content_type": "send_key", "media_content_id": "KEY_CH_LIST"

error: 14/11/2020, 02:43:59node: media_player.tv_ue48ju7500 msg : string[526] "Call-service API error. Error Message: Error during async_call(), status: 500, body: <s:Envelope s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"><s:Body><s:Fault>s:ClientUPnPError<UPnPError xmlns="urn:schemas-upnp-org:control-1-0"><errorCode>716</errorCode><errorDescription>Resource not found</errorDescription></UPnPError></s:Fault></s:Body></s:Envelope>"