k800 big problem

Hi expert,
i have k800 and i flash with firmware then when i turn it on he asking to " insert correct simcard" then i write it with wrong gdfs.now i try to turn it on not respond and i connect him to setool also not respond . setool canat detect him plz help....??????????????????????
BR

so fool of you to do at your own before searching the forums, your phone needs to be repair at the service center.