dickson li
New member
...New BootRom/BootLoader? My Iphone Black 3GS 32GB has Serial #88925J403NR,is it the Old BootRom/BootLoader or New BootRom/BootLoader? it has been jailbroken on 3.1.3 and unlocked using Spirit Jailbreak, has it any chance of upgrading to iOS4 from 3.1.3 still un-tethered jailbroken & unlocked on iOS4 using pwnage tool 4.01?