SubscribeiPhone 3GS users can now safely update to 3.1.2 firmware without updating the baseband (for unlock). If you are not the one to download all the various files and just want the ultimate result, these files are waiting for you to download! If you rather want to start from scratch, download Pwnage Tool 3.1.4 (MAC) (342) for Mac.
Caution #1 : A restore is going to wipe the iPhone clean. Hence, please backup your iPhone using iTunes and then proceed.
More info about these custom firmware files :
* Has factory boot logos (Apple and restore cable),
* Only Cydia, No Icy
* Preserved Unlock baseband (that is the whole point of a custom firmware, right?!)
* Activated/Not Activated (Check the files carefully)
Prerequisite (recommended) :
If your iPhone is already jailbroken at the current firmware (3.0, 3.0.1, 3.1), it will be a hassle free upgrade! Restore mode will work just fine with already jailbroken iPhones.
Step 1) Download Files for iPhone 3GS (Please read the following carefully)
* Download the following files ONLY if you have an Official iPhone contract with your cell carrier (ATT and others….)
OR
* Download the following files ONLY if you don’t have an iPhone contract (T-Mobile and others…)
* You should now have the respective firmware file with an extension .ipsw (make sure it is .ipsw or else, it will give you an invalid firmware error) . Follow the steps in order :
* 1)Launch iTunes and connect the iPhone to your Mac / Windows computer.
* 2)If your iPhone is already jailbroken (if you see Cydia on your iPhone!), put your device in Restore mode (Turn iPhone off, keep holding Home button while you plug it in to your computer). Proceed to step 7. If not jailbroken already, continue to the next step (3).
* 3)If you are aware of DFU mode, proceed to *7. If not, continue reading.
* 4)Turn your iPhone off. Press and hold the Home button and the Power button at the same time for 10 seconds.
* 5)After exactly 10 seconds release the Power button. Continue holding the Home button until iTunes pops up a message saying that it has detected an iPhone in recovery mode.
* 6)The iPhone will show you a blank screen (black).
* 7)Click on ‘Ok’ to the prompt displayed.
* 8)For a Mac : Hold Option key and then hit Restore button.
* 9)For Windows : Hold the shift key and then hit the restore button.
* 10)In the dialog box that pops up, browse the downloaded custom firmware file that you downloaded in the download section.
Step 2) Give it few minutes to perform the restore. Once the iPhone is up and running, proceed for software Unlock using Cydia. Follow this guide to install Ultrasn0w to software unlock your iPhone 3GS.
You are now good to go! Post a comment if you are stuck at any of the steps described above.
[Pwnage Tool is developed by the Dev Team. This is just a custom firmware file created using that tool especially for Windows users cos' Pwnage tool is available only for Macs.]
bart
Posted on October 26th, 2009 at 2:47 pmhope this works..thanks
bart
Posted on October 27th, 2009 at 11:16 amwhat are the languages for the firmware?
E Reyes
Posted on October 29th, 2009 at 12:51 amlanguages??
jojo
Posted on October 30th, 2009 at 7:14 amhi i have a 3G and after an (3.1.2) update on itunes i lost accses to the iphone it just wont accept the simcard an i cant do anythin with the i phone. i did do som reserches on the net an manny sais that it is not possible to unlock an jailbreak it.
is it truth?
Saurabh Jain
Posted on February 7th, 2010 at 12:44 pmI have recently bought an iphone 3gs 32 gb with 3.0.1 firmware model mc138LL/a and i think it is jailbroken and unlocked(becsuse Cydia is installed on my iphone) and i am using other carrier SIM also means when i completely switch it it on or off or battery dies down the phone doest not go into recovery mode..it comes to the home screen when powered on or charged up..my question is if i upgrade the firmware to 3.1.2 =will be it blocked again? And if it gets blocked can i rejailbreak and permanenlty get rid off this recovery mode loop problem/ Please reply asap!!
Abdulla
Posted on February 27th, 2010 at 12:25 amwhat if my Iphone wont even boot up, Apple logo wont even be there….
however, when I open Itunes, it would detect my Iphone and ask me if I wanna restore it.
when i tried to restore to the custom firmware, it will give me 1611 error.
I have a 3GS (3.1.2)
L3
Posted on March 12th, 2010 at 2:51 amLet me get this straight. The point here is to keep the 04.26.8 Baseband. I have an AT&T Iphone Contract bu want to keep the same baseband (04.26.08). Should I go for Activated or Non-Activated? Thanks for your help
chase
Posted on May 30th, 2010 at 3:23 pmHey there,
info: jailbroke/unlocked 3g running on 3.0 and 4.26.08 base band.
: recently swapped carrier’s Rogers -> Telus, with only one minor prob, lost visual voice mail.
I have tried doing you custom restore but it seems (itunes says) the firmware and iphone are not compatible.
not a techy, totaly self taught here and not sure what to look for in firmware updates as to not change base band.
thx for the/any info