I've had my M8 since June '14 when I first rooted, S-OFF etc to install CM 11.
Now I'm stuck on CM11 as I can't upgrade my bootloader. Well, at least I can if I flash back to a developer RUU and then upgrade that to achieve the 3.18 bootloader AND THEN root, and S-OFF AGAIN.
I don't really want to do it, but I have no choice. I've heard the original Firewater method for rooting is now defunct, so what method would I now use to root and achieve S-OFF again once I've flashed back to the developer RUU?
Oh also, I'll need to flash a custom recovery too.
Thanks in advance.