At Vbratta
I did !!
It is legit chip. I had a 21pro version 1.3 I think.
Now I have a Legend version 2.3
I bought it from this guy Digitech GSP21 - GSP21 Pro - GSP21 Legend Main Page
and he is LEGIT.
anyone thinking about upgrading their gsp21...Don't be scared to order from him.
I ordered...