Default [Q] I am a stupid

I nucked up BIG time.

I had xxuamdk 4.2.2 i somehow* managed to upgrade from kies. now i have xxuemj8 4.3 BUT no network connection my imei has not changed at all. I tried upgrading radio via odin but no luck lots of radios didn't even worked. workking ones cannot registered on network. i tried installing other roms and no luck.

BUT something is fishy in here. when my phone says not registered on network. i tried calling myself from land line i got ring tone. but there isnt any action om my galaxy. when i turn on airplane mode i got carriers unreachable message.

*there is stupidity. i still cannot believe myself WHY I DID IT. I didn't even back up my efs.

So i don't know how to deal with it. What should i do???