A coworker gave me his old iPhone 4 which has a deactivated SIM in it. Because the SIM was deactivated we needed to use WiFi to turn off his iCloud account but... the WiFi was turned off and the WiFi setting in Settings was greyed out. I found an Apple help page that talked about the greyed out WiFi setting and it said that that was a known problem with iOS 7.1 and to upgrade to 7.1.2. We did that and now the phone can't get past the activation stage. I'm thinking that this is related to Activation Lock but shouldn't it give him an option to enter his Apple ID to release the lock? After booting it goes to the white Hello screen where it asks to enter the language and the country and then it fades to the black Connect to iTunes screen. When we connect to iTunes it gives an unable to activate error with the code (0xe000004). Everything I've searched says that this is a Windows error but I'm using a Mac. I've tried DFU mode and it doesn't help. It just causes iTunes to install 7.1.2 over again and then the cycle repeats. Anything else I can try? This is not a stolen phone -- we just can't get to any screen that lets him enter his iTunes password.