I got iphone 3g version 2.0.1 and moderm firmware 01.48.02 .l restored to version 3.1 with a restore file. Now its showing emergency call screen with cable.l am stuck here l dont know were to start now.pliz help.
the easiest way is to restore to 3.1.3 then jailbreak with redsn0w .9.5-5b, select firmware 3.1.2 in redsn0w..then unlock with ultrasnow in cydia..or if you can activate the phone after restore just use spirit to jailbreak...