don't know if this is helpful, but I was having problems getting my URC-8811 to work with this box and it turns out that it needed a new code and a new protocol uploaded to the remote to work. So, I am assuming the yours needs the same. Here is a link to the file I downloaded. It is a text file that contains all the information for the code and the protocol:

[Link: hifi-remote.com]

Maybe you can extract the information you need from the file!

Hope this helps and good luck!