TM-500 Manual Update of UR Team image


Hi Guys, I was given an a TM-500 someone was throwing out a while back, I powered it on yesterday to see if it worked and discovered is is using UR Team 2.0.23, I have been able to FTP, but have no remote yet, I saw there is a manual update option in the menu, is this only for updating UR TEAM images, or could I put any image there?

Ive seen some threads, where people suggest doing it via browser login, but that only allows me to stream video and not configure the box.

Anyhelp, would be appreciated,