OK my s3 is fully up to date if that helps anything. I'm using ubuntu 14.04 with heimdall and heimdall fronted installed from the repos. I'm following this guide http://wiki.cyanogenmod.org/w/Install_CM_for_d2spr but i never see the mentioned blue bar when flashing and I can't boot into cwm despite being told that the flash was successful.. What exactly am I doing wrong? I want cm on my device but i need to do a full nandroid backup of stock first which I can't do without a custom recovery. It's kinda a catch 22.