It is a D10-300. Looks just like the one in this guide.... http://www.directv.com/learn/pdf/System_Manuals/DIRECTV/DIRECTV_D10-300.pdf

I've tried that and it doesn't do anything. When I do a reset I don't get a Hello screen it goes straight to the loading data progress bar. I did not have the phone line connected at first but connected and and tried reset but still no updates. The user guide says it should call out once a month...

I just bought a D10-300 receiver and RC23 remote on E-Bay. They must have been on the shelf a while because the Active and Shortcut buttons do not work. From what I've read there were updates a few years back that made these work. Is there way to get those long past updates so I get full...