If you want me to help you please paste FULL log(s) to "spoiler"/"code" bbcodes or provide link(s) to pasted file(s) on http://ctrlv.it/ Otherwise "NO HELP"!!!
If you want root DISABLE internet access to your device!!!!
DO NOT EVER INSTALL FIRMWARE UPGRADE !!!!
You have FIRST set the RS232 Jack to "Debug" in the Service_Menu.
if you decide to re-hack you have first to do a exlink cable -->http://wiki.samygo.tv/index.php5?title= ... rvice_menu and format mtd_rwarea area and then do a factory reset from service menu then rehack using manual method that is more simple.
the right samygo extension for your tv are here http://download.samygo.tv/C%20Series/Fo ... 184231.zip you have to download it extract on usb and then start it form your start.sh or SamyGO.sh script on usb i don't rember well.
if the tv is hacked you could ftp in your tv by simply ftp://ip_of_our_tv (try with windows 7 or with your browser)
if this work search for etc/init.d/ in this directory are all samygoextension script you can disable it by simply adding .dis at the end of the file.
if you instead insert your ip on browser you should see the webif
if you need more info read here viewtopic.php?f=13&t=1076 but these not simply apply to your situation because you use a different rooting method.
Ps the method that you use network_opt image use space located in the mtd_rwarea the manual way instead use files that are on usb stick so if you have problem you can simply start tv withouth stick and you get your tv fully working.
I suggest to format mtd_rwarea and re-hack in manual way.