Update: the unlock also works with the iPhone 3GS and iPhone 4, and will need to be done again if you reset your device. Continue after the break.. 6. Make sure WiFi is off ( also tap on ‘Forget this Network” to make sure it doesn’t connect automatically later) 7. Switch off Airplane Mode and iPhone will search for network. This is followed by the Apple splash screen appearing. 8. Activation Requi