[Q] Can't boot after SuperSU binary update topic

Hey hey,

Today I had a SuperSU update through the Play Store which I installed. When that was done it told me I needed to update my binary or something along those lines. Since I have an HTC it told me I should install it through a custom recovery like TWRP. I already had TWRP installed, so I went ahead and did that. After it did its thing, it rebooted. Or well, tried. I stared at the boot animation for about 10 minutes, and then I rebooted. I still didn't get past the boot animation. Then I shut it off, went into my bootloader and via there into the recovery. Downloaded the latest SuperSU zip and flashed it through TWRP. Rebooted, but no dice. A couple of reboots later and I'm unable to properly shut off my phone or get into the bootloader/recovery. I also can't see my phone through ADB.

My M8 has been converted to Lollipop GPE and have had no issues at all before. I am sort of familiar with ADB, recovery's etc, but I would not call myself an expert. Right now I'm at a loss, and any help would be great.