I'm trying to root my phone, and I was told that because I own a Galaxy S6, I need to unlock my bootloader. My carrier is AT&T, which makes it apparently even more difficult. I've tried things such as fastboot, which will get stuck telling me
waiting for device input. I'll look that up, and it turns out I need to install PdaNet if that happens. Of course, PdaNet is blocked by AT&T and there's no way to install it.
I've found at least a dozen articles and the like on the matter, and none of them have worked. If anyone's got some advice, or even just a flat-out "it can't be done", I'd greatly appreciate that. I'd also like to know if unlocking the bootloader is necessary, and if it isn't, I'd love to know what I've been doing wrong, and what my next steps should be or what guides are good and up-to-date. Thank you all in advance!