Download iOS 6.1 Build 10B144 IPSW Firmware Restore Files
Download the IPSW iOS 6.1 (Build 10B144) firmware file released at 24 January 2013 intended to restore iPhone 4 (GSM / 2012) via iTunes. IPSW iOS 6.1 build 10B144 is unsigned by Apple to update Apple device software.
