If you still have your warranty, try calling Apple Tech Support during business hours and see what they can do for you.
So your firmware is somehow deleted and gone if I understood that properly?
Yes and i got firmware 2.2 but dont know how to download it?
Can you restore from your iTunes back up then?
No when i connect it with itune it keep saying insert valid sim and no connection with itune.
i think you have to put it into dfu mode for your computer to recognize it then try to restore from your itunes... I am sure someone can explain this better