Back to stock and relocked bootloader, also did factory reset.
Signal is often 0 to 1 (and a lot of unavailable service), in some area of my city seems to work (and also 5 bars)
Problem is that if i change my sim to another mobile where i have 0 to 1 bars / unavailable network on Moto G i have 3 to 5 so i don't think it's an area problem.
Imei still 0 , tried to contact also .DE support (as i bought my phone in germany) and they'll need to investigate!
What can i do now?