As you might already read on my Twitter... Appearently HMD doesn't want us to unlock their newest phone root it.
So the whole procedure is a bit painful but I eventually made it.
Appearently, I do not encourage you to root your device or you'll lose warranty, but I'm a hardcore developer and Nokia enthusiast, why not?
Mine is a TA-1131 (Chinese Nokia X7).
No, this is not a guide, and I will not tell you how to root it