Cannot update firmware on RBS50 Satellite

I recently plugged in my second satellite to my system and having poor Backhaul performance.  I noticed that my Router and 1st satellite are at firmware 2.2.1.210, but the added satellite is as V1.3.0.26, since it has been siting in the box since I bought it.  Auto update not working, says it cannot find an update.  When I do manual, down load the 2.2.1.210.img and I enter it into the field to update, is says "please select correct configuration file".  I tried it on the 1st satellite and it took it.  I am at a loss on how to update the sattelite firmware. Help