Firmware 5.xx works Mar 12, 2011 2:36:39 GMT 7 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by patmtp35 on Mar 12, 2011 2:36:39 GMT 7 as you could read :www.thecus.com/forum/viewtopic.php?f=13&t=1378firmware 5.x.x.x from N4200eco works on N503