My Fez Domino can't read USBClient and USBHost Refference

i think this is firmware problem, and need version v4.1.3.0??
i’m new and need help please :frowning: :’( ::slight_smile:

For updating your Fez have a look here: [url]- YouTube

Did you add assemblies’ references?
It is better to start by reading the ebook online.