v8star

hi eveybody i've just upgraded my vto2000 to latest sip firmware posted above but i cannot login anymore neither from web and from config tool telnet or wathsoever. The vto respond to ping to the right ip and the only open port is the tcp 3800 but seems to bring me nowhere (login overtime via configtool), close immediatly I've just tryed to reset pressing ring button and gave it power (with blinking panel) but the situation rest that the vto is completely unaccessible. What can i do now? thanks