iPhone 3GS running iOS 4 GM or iPhone OS 3.1.2 (mine was running a jailbroken copy of iOS 4 GM) with old bootrom. 05.13.04 baseband. First, download Pwangetool and the .ipsw firmware file to your ...
In general, you’ll get seven to eight years of software updates, while battery and other repairs are often available on five to seven-year-old handsets ... was able to run iPhone OS 3, which ...