Robert,
I made that upgrade on an A-90 and all worked fine.
If you are sure that A-70 uses the same operational system of A-90, try downloading again the file, as it may get corrupted during the downloading operation.
If you already had an Expansion Board VE-JV1 or VE-RD1 and changed to the VE-GSPRO, would you like to sell the used one to me?
Please email me to "fpjusto@furnas.com.br"
Regards,
Fernando