Default Note 2 SHV-E250L

Hello everybody, I bougth a note 2 korean version (SHV-E250L), with jelly bean, the problem I've got it's, that as a newby reed a lot before I start traing to put the kitkat, (I allways have motorola and this samsung thing it's new to me) the thing it's that I don't reed enaugth information, try to install the firmware and give me error (and don't let me enter to recovery), then try to restore jelly bean but EFC problem, don't have imei, don't have a backup of the EFC, and try to reinstall both kitkat and jellybean same version, (lastone from sammobile) nothing... any idea? phone was never rooted, factory unlocked.