[Q] HELP!! No mobile network topic

Hi,

I am using the I9300GSMH mobile. After flashing the CM11 to my phone, I lost the mobile network connection (2G and 3G). I know the problem was due to lost of IMEI (I got the blank info after type *#21#). I am trying to flashing the stock ROM using ODIN right now. But what can I do if I really wanna to use the CM11 for my mobile?

Many thanks!!

Jerald