ive just put the new firmware on 4.55 and it was workin fine last night but ive had it unplugged while ive flashed a few of my mates and when ive plugged it back in just saying no signal and scrambled or bad chanel so ive done factory settings and tried channel search and it just freezes and wont find any . i then tried re flashing it and still the same problem has any1 got any ideas as im all out cheers the keys are right and the emu is on