iOS 5.1.1

SoftBank Apple iPhone 4 2010/06/14 iOS 5.1.1 640*960 Cortex-A8 (800MHz) PowerVR SGX535 + VXD 375 JP au by KDDI Apple iPhone 4S 2011/10/14 iOS 5.1.1 640*960 Cortex-A9 (800MHz) PowerVR SGX543MP2 JP