[HELP] Rooted phone died

Hi!

Today I made a software update for my Lenovo S580 phone and while installing the update I got an error. Now only boots in to Recovery mode.

What should i do? I ahve these options only:
- Reboot
- Apply udpate from ADB
- Apply update from external SD Card
- Apply update from internal SD Card
- Wipe data\factory reset
- Wipe cache partition
- System partition check --> when i do this, it drops me back with this message: "system have been Root!".

Please help!