Originally Posted by ka_55
I don't know why you want to s-off but i think you don't have to. If you have twrp you can mount your sd via twrp to a computer, copy any rom you want to the sd, flash boot.img with fastboot from the rom zip and flash rom via twrp. But you should first unlock your bootloader
Sent from my One S using xda app-developers app
Thanks both for the replies. I have transferring a boot.img using fastboot, but this just gets me into a never ending boot screen. The boot.img I tried were cm 10.1.2 and then a 10.1.3. I had read that this will not work with S-on, but I am far from an expert. I have tried rumrunner, but this needs adb to work, and from what I gather adb only works when the phone itself is also booted into an OS.
I had tried to get adb working, but I never get any response from adb devices as the phone never gets past the bootloader.
I realise that I don't need S-off to flash a stock ROM, but my problem is that can't find a stock ROM for a 2,15 Hboot. My goal is to install CM 10.2.