在等待了几个小时后，我没有得到任何人的回答，我不得不继续尝试，我发现我实际上可以连接到BLE设备，没有服务UUID，而只是ID，我认为这是BLE设备的Mac地址。
我使用下面的代码片段来建立连接：

void _connectToDevice() {
    // We're done scanning, we can cancel it
    // _scanStream.cancel();
    // Let's listen to our connection so we can make updates on a state change
    Stream<ConnectionStateUpdate> _currentConnectionStream = flutterReactiveBle
        .connectToAdvertisingDevice(
            id: _ubiqueDevice.id,
            prescanDuration: const Duration(seconds: 3),
            withServices: <Uuid>[]);
    _currentConnectionStream.listen((event) {
      print(":::::::: ${event.connectionState.name}");
    });
  }

so I will now proceed to see how I can read and write to the characteristics, i hope someone find this helpful