hi padamos,
thats a much better clue as to your problem thanks, i would suggest you try to load just the original firmware for 5400, without loader, you do this with hdfsmart or hu15, and a nullmodem lead, then load a channel settings file, with hnfsmart, this with luck should get you to a FTA box, then you can check out the sys id ect, and make a better judgement on where to go next
hope this helps
voith