Originally Posted by sedalatianz
that "dead droid with red message" IS the stock recovery pre-screen. Just hold Power and THEN, immediately, press Volume Up.
Addendum: for some reason I cannot root :/
I'm using NRT 2.1.4, driver installation checks out fine, goes through two temporary runs of TWRP 3.0.0, says "rooting", phone finished booting and... running SuperSU bitches that rooting wasn't done properly.
I chose to keep the stock recovery because of the OTA, by the way.
Anyhow, I'm going off topic.
Thanks again for your help.