questions about upgrade sp to EX

[55cancri]

SO, i tried with no succes to upgrade my sp808 toward Ex with midi cable and a mt4 emagic midi device with a PC
The files came from the 808nation site witch is obviously dead

but I ve got the files but didnt match

the sp is waiting for the signal endlessly

Is this the only way
the pc I think must be sp2 pack or later or before ?
and the midi device ?

thks for help

[jbl]

i couldn't do this either. there was a zip file that could be loaded but it never worked for me.