There is no OS instelled, I can only boot into recovery (while booting from the bootloader it starts Team Win Recovery Project v220.127.116.11, when I boot from the phone being off it opens ClockworkMod Recovery v18.104.22.168) or bootloader. The internal storage is wiped. My PC is not able to install the device driver software, so I cannot put any files on the phone via USB cable. Also it appears to not be rooted, as the recoveries ask me if I want to install SuperSU. But if I accept this, nothing changes and the next time I get the same question.
All in all almost erverything on this phone is deleted and I have no idea how to put a ROM back on it to flash. Can anyone help me fix this?
Update: Trying out the USB-OTG-cable I get the error "E: Can't mount /storage/usbdisk"