[1.1.4][Advice] Downgraded from 2.0 > Now can't receive calls
I have a first gen. iphone, 1.1.4 version, unlocked, jailbreaked, and I updated it via iTunes to get 2.0 firmware ( I know I'm crazy, and I should have never done it...)
I followed all the procedure to downgrade my iphone and now it's back to normal except when it asks for my pin, i fill it in, it works BUT I CAN'T RECEIVE CALLS OR GIVE CALLS OR RIGHT SMS ANYMORE. There are no more bars at the top left corner and it sometimes says No Service!!!
What can I do?
Please tell me my iphone isn't broken!
thanks a lot guys