However although it flashed fine, my wifi now won't turn on on the phone, everything else seems to work, but the loss of wifi is a catastrophe.
Furthermore it seems to have unrooted the phone so I can't use RomManager anymore to flash any other rom.
At the moment I'm stuck, I can't seem to flash any Rom as RomManager won't work, I cant boot into recovery (no option) and the Rooting method I orginally used no longer seems to work with this 4.4.2 official Samsung stock build.
Can anyone help me? Either to fix the wifi, or to get a working rom flashed?