B550 does not have DLNA, right. But you can use NFS and/or Samba sharing features. With them, you can watch movies from your phone as it plugged to TV. But you do not have any control from your phone, like rr/fw. It work as your phone connected to TV's usb port. So, there is no real benefit to do that via WiFi/USB emulation layer. Just plug your phone to TV directly, It will charge your phone also
