HT1937: iPhone: Wireless carrier support and featuresLearn about iPhone: Wireless carrier support and features
Currently Being ModeratedJan 15, 2013 12:15 AM (in response to Kulot16)
Downgrading is Not Supported by Apple.
Unauthorized modification of iOS
Currently Being ModeratedJul 13, 2013 2:23 AM (in response to AnaMusic)
Does anyone else think it's funny that someone could suggest that using Apple's official firmware files on one's iDevice would be considered an unauthorized modification of iOS? How's that work?
Currently Being ModeratedJul 13, 2013 2:47 PM (in response to jim122)
Older versions of firmware are no longer signed by Apple and are
no longer considered offical firmware files - therefore using an old
version of iOS is considered an unauthorized modification once
a newer version has been installed on the iPhone in question.