Orignal XBOX Dash no longer boots (red flashing)

[dude]

sounds to me like you'r msdash has been updated and/ or corrupted.

you dont need to flash the bios to run newer versions of evox i'm still using the bios that came with the chip and it's over 18 months old.

you can flash you'r chip so it boots off evox when the chip is active and msdash when it's not. so you dont have to constantley change dashes. for this use x2 4977 bios and name the msdash to xboxdash.xbe and evox to evoxdash.xbe.

did you backup the entire c drive ?
if so just delete the contents of c and transfere over the copy.
if you did not then you will need to find out which version of the ms dash you'r machine came with and obtain a copy.

p.s dont connect to live when you'r chip is active as it will eventually ban you from the ms servers and then you'll be realy screwed.