You can still try a hard reset..
When the phone is switched off, press and hold the Volume down key + Power key with your left hand.
When the LED on the bottom of the phone lights up, release Volume down key + Power keys and press and h...
Please stop bugging him for the next version. I want it too, but it is not right as he is not under any obligation to release it.
The same thing happened to me. Baseband and IMEI were unknown suddenly.
Then I did a factory reset, wiped all caches and flashed cm-11 followed by GAPPS & I got back network.
It was a pain to reinstall all apps and do all the same settings agai...