ICCID Unknown error

[p0tat0]

Hey everyone I have a dire issue I tried to upgrade my first gen iphone from version 1.1.4 to 2.2 to have the new installer and cidia apps at my disposal the tutorial was very simple and i did the step by step process but when i placed my sim card my phone would not read it i thought something might be wrong with it so i tired another sim card but nothing again. when i started investigating my general info from my phone to make sure it was working i saw my ICCID was erased. I looked into it and i guess im screwed for erasing the iccid i was wonder if i could do anything about it.

I have tried to downgrade my phone to 1.1.4 but the ICCID is still lost and i have no idea how to properly downgrade from 1.1.1 to 1.0.2 to see if it'll pickup the ICCID