I just got my M8 last week, and I was able to permanent root with Weaksauce, and S-off using Firewater. No HTCdev, bootloader unlocking, or any of that. I'm still on the stock ROM and Recovery, and didn't lose any data.
Here is my question, though:
Now that I am S-off and rooted, if I use Flashify to install TWRP Recovery, will it affect my existing stock ROM? Like, will it factory reset me? I can't think of why it would, but I'm just trying to be careful.
If you feel like you need to ask for 'thanks' in the signature section of every post, you probably don't deserve it.