Is it okay to update to 3.1.3 if I don't want to UNLOCK my iPhone 3GS?
I just want to use new themes, use Cydia etc... I don't need to unlock it.
Cheers.
I upgraded to 3.1.3 due to my phone locking up and successfully downgraded to 3.1.2 last night.
Thanks both or your help.
No, it's not currently Jailbroken, it's still on firmware 3.2.1.
I've just tried to JB using PwnageTool 3.1.5 and firmware 3.1.2ipsw, but I seem to have cocked something up!...My 3GS won't turn on and I can't seem to get it into DFU mode.
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ThanksIf your phone is not pwned, you can't install a custom firmware. And if your phone has the new bootrom, it's not possible anyway. You really should have answered my questions before you tried to use PwnageTool on your own.
If you are currently in DFU mode (completely black screen, iTunes recognizes a phone in recovery mode), Go to> About This Mac > More Info... to open System Profiler and locate your iPhone under Hardware > USB. At the end of the description of your iPhone should be the bootloader version (either 359.3 or 359.3.2). If you report back here with this number, I will tell you where you can go from here. Hope for 359.3, because otherwise your prospects are dim.
Downgrading is only possible if either 1) your phone is not a 3GS, as the OP's is, or 2) you have your 3.1.2 SHSH saved and use it to spoof Apple's signature server.
Anyone know if it is still possible to JB with 359.3.2?
Thanks
It says [iBoot-359.3.2]
Would I have been able to JB if I did it properly the first time around?
Okay, you are in a rough place now. You would have been able to jailbreak using redsn0w or blackra1n if you'd done it the first time; but by trying to restore to the wrong bootrom, you have gotten yourself into a boot loop. Unless you can get out of this boot loop and boot up to 3.1.2, you will be forced to upgrade to 3.1.3 which can't be jailbroken.
How good are you in a terminal? There is a tool called iRecovery which may be able to kick you out of recovery mode, but you have to run it from a command prompt. There are instructions for using it here. If you can get it out of the boot loop and boot back into 3.1.2, then you can jailbreak using Redsn0w.