I have by mistake installed and unlocked with WinPwn the 2.2 firmware on my 2G iphone. The phone works but not the EDGE as when i go to Settings->General->Network i only have the 3G option which of course does not do anything.
I am trying to avoid going back to an older firmware since I also had to fix a dead strip on my screen and installed a new General.plist to enable the Touch feature on the Settings. I also understand that 2.2 gives important upgrade on the applications which i would like to retain...
Is there a way to replace a file in Preferences.app (like for General.plist) to re-activate the ability to use EDGE on my iphone without going back to old firmware?
Any help greatly welcomed.