Cant write tune

I have downloaded from the repository a 6.0 2001 from a sliverado p01 and licensed to write in a p01 2001 and i get every time a vehicle unlicensed error, am i doing something wrong?

Thanks

Did you license the file on the original computer first?

It takes several credits to do what you are trying to do, normally it's not suggested.

Already found my error thanks anyway