since yesterday my MacBook is stuck on boot after changing language in the systems control panel: Before the login I just see a circular loading indicator and my mouse cursor is stuck in the top left corner.
It seems like a service is restarting all the time since the loading indicator spins for like 10 seconds before disappearing and reappearing again.
I tried resetting the NVRAM, first aid from the disk utility and reinstalling OS X - it all fails and so I'm still stuck. I also tried running languagesetup from the single user shell but this just returns an error message saying "file or folder not found".
Im running OS X Sierra.
Hoping someone has some advice since Im fearing only formatting can rescue my MacBook.
Update (output of verbose mode):
IG: Called when FB is in a non-wake State in SetAttribute - attribute ´gnps´ (same message appears 3 times with ´gnps´ / ´par´ / ´p2l´)
After that the screen turns black and the following line repeats like describes above (turning black, lines again and so on):
IOConsoleUsers: gl0ScreenLockState 3, hs 0, bs 0, now 0, sm 0x0