I have a problem as I have heard it is currently impossible to unlock the bootloader on my phone which is a Galaxy S4 SCH i545. OS 4.4.2 Kernel version 3.4.0 and build NC5. I would like to be running CyanogenMod.
Also, It is currently rooted via the new Towelroot hack.
I am wondering if a possible option would be to revert to a previous android build where it would be possible yet to unlock the bootoader.
Has anyone done this? If so, how far back should I go and what is the best way to do this? Thank you for your help.