Just wanted to root my phone again.
My carrier had an update but unrooting did not help to get it installed.

What it did though, was restoring my recovery partition.

So booting my phone in recovery mode, saying twice that I want to reset my phone (just the layer before booting into recovery).
Aaand... It actually erased. 😮

So having little sleep tonight because I need to install all my necessary apps again.