openecu.org

Good morning to all

I've made a backup of my rom, and everthing without errors goes good.
I would like to update it to A4SE900D with little tuned, but before i do this, is there a way that i control my backup to see if this is good?
Because if something goes wrong i can put the original (that works) back.

Thanks

sorry i forget to upload the file, that somebody can control it