Today i rebooted the phone, and when it booted up it presented me the first configuration wizard. I thought, "ok this is strange" but after i completed again the configuration everything was still there.
Tonight I tried to install the XNPH33R update via TWRP, i loaded the file into the sdcard and rebooted into TWRP.
I thought "let's make a nandroid before, in case of problems", and i saw it could not mount the /system partition. The backup failed and then i tried to reboot. The phone does now not start and when i try to boot into TWRP, it reports that now ALL the partitions are borked and can't be mounted, reporting them 0MB, except for the boot one.
My question is, am i the only one that experienced something similar?!
I'm goin on to flash factory image but this seems a big problem!