Update to 3.1 or 3.1.2

christyrone · #1 (**permalink**) 10-13-2009, 01:37 PM

Hi,

I have the iphone 3G 8 gb with OS 3.0 which I purchased jailbroken and unlocked. How can I update to 3.1 or 3.1.2 without bricking the phone?

Thanks for any help advice.

pconde · #2 (**permalink**) 10-13-2009, 01:46 PM

Quote:

Originally Posted by christyrone

Hi,

I have the iphone 3G 8 gb with OS 3.0 which I purchased jailbroken and unlocked. How can I update to 3.1 or 3.1.2 without bricking the phone?

Thanks for any help advice.

You need to generate a custom firmware with pwnagetool. It avoids the baseband upgrade, so your iphone will be unlockable. See iClarified tutorials, it is very easy.

After restoring your iphone with the custom firmware, you will need to install UltraSn0w from Cydia (you will need WIFI access) and reboot the iphone.

christyrone · #3 (**permalink**) 10-14-2009, 10:00 AM

Thanks for your reply. So correct me if im wrong this goes for all future updates right?

So once i generate the firmware do I still need to jailbrake and unlock the phone?

Thanks in anticipation.

pconde · #4 (**permalink**) 10-14-2009, 10:18 AM

Quote:

Originally Posted by christyrone

Thanks for your reply. So correct me if im wrong this goes for all future updates right?

So once i generate the firmware do I still need to jailbrake and unlock the phone?

Thanks in anticipation.

Yes, you will need to generate a custom firmware with pwnagetool for keeping the unlock active. If you are not using an official Apple carrier, remember to select the "Activate the phone" option. After generating the firmware, you will have to restore it with iTunes (Option + Restore in Mac, Shift + restore in Windows). Then, select your custom firmware.

After the restore (and after restoring your latest backup), you will have a jailbroken iphone, but no unlocked. To unlock it, you need Cydia. Add the repo repo666.ultran0w.com to the cydia sources, then install UltraSn0w from that source and reboot. Remember: You will need WIFI to install UltraSn0w.

After that, your iphone will be upgraded, jailbroken, unlocked and activated

christyrone · #5 (**permalink**) 10-15-2009, 01:43 PM

Thank u very much for your help.

So I will have to generate the ipsw file on opening pwnage tool right?

pconde · #6 (**permalink**) 10-15-2009, 01:50 PM

Quote:

Originally Posted by christyrone

Thank u very much for your help.

So I will have to generate the ipsw file on opening pwnage tool right?

You have to download the official firmware, and copy it on the same folder of PwnageTool. See this iClarified tutorial, it is really easy: iClarified - iPhone - How to Jailbreak Your iPhone 3G on OS 3.1.2 Using PwnageTool (Mac)

christyrone · #7 (**permalink**) 10-19-2009, 11:04 AM

Oh? Yes I read that it was very informative.

Why do i have to download the official firmware when I'm using the custom one generated by pwnage tool?

Olethros · #8 (**permalink**) 10-19-2009, 11:51 AM

Quote:

Originally Posted by christyrone

Why do i have to download the official firmware when I'm using the custom one generated by pwnage tool?

Because pwnagetool needs the official firmware as a starting point for it to create the custom firmware.

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