Do u have ROM-writer??? how can repair???
I think U need test about download.. ^^;
First, u r check serial message...
plug in Hyperterminal.. Setting (115200/8/None/1/None)
and power off/on, and then u can see the anymessage...
if you don't see, flash memory or other system gone....
send me result
xfile2580sw@hotmail.com