I am trying to root a UA55ES8000, currently running FW series T-ECPUABC FW version "1028.1". So I found one with FW>2000 viewtopic.php?f=49&t=8721 and the one I am going with wiki.samygo.tv/index.php?title=Rooting_the_ES-series. Is it possible or do I need to rollback to an earlier FW? is there a way to do so, and where to get older fw versions? Please tell the limitations too.