I am fully aware I was stupid to upgrade my unlocked jailbroken 1.1.4 iPhone to 2.0 without any prior knowledge.
It took me about 5 hours of googling to work out how to downgrade back to 1.1.4.
HOWEVER, I think 2.0 left its old baseband behind. And ive tried everything to restore the old version.
Currently, its just like an iPod touch. I cant make or recieve calls etc. Only thing that works is WiFi.

So I followed a guide which told me how to change the baseband.
However it strikes me a little strange, that to get access to the filesystem it needs to connect via WIFI yet following the guide shuts off wifi.

Nothing I try seems to be able to restore the original.
Currently using DEV_ICE_MODEM_04.05.04_G
But obviously I need ICE04.04.05_G.

Any suggestions are helpful.