Downgrade firmware 2.2.1 to 2.2
Many users have accidentally upgraded to firmware 2.2.1 on their devices and they have lost their jailbreak. People repeatedly keep asking how to downgrade firmware 2.2.1 to 2.2 in the QuickPWN Forums.
vicon-sd posted a great guide on how to downgrade in the forums at this topic:
Upgraded to 2.2.1? Here’s how to downgrade!
Here is how you can downgrade from firmware 2.2.1 to 2.2:
* Connect your iPhone to your Mac or PC and select your iPhone from the list of devices in iTunes. If things had gone horribly wrong while hacking your iPhone and iTunes does not detect your iPhone then you will need to put it in DFU (Device Firmware Upgrade) mode.
o You can follow these steps to put your iPhone in DFU mode (this is required only if iTunes does not recognize your iPhone):
+ Connect your iPhone to your computer.
+ Turn iPhone off.
+ Hold power and home together for 10 seconds (exactly).
+ Release power but keep holding home until the computers beeps (observed on a PC) as a USB device is recognized.
+ A few seconds later iTunes should detect your iPhone.* In the Summary Tab, Hold down Option and press the “Restore” button. If you are using Windows hold down Shift and press the Restore button. (This is an important step as just pressing the “Restore” button will result in restoring your iPhone with the latest firmware which is firmware 2.2 currently, by holding down Option in case of Mac or Shift in case of Windows, allows you choose the firmware file that you want to downgrade to.)
After restoring you can download the jailbreaking tool and jailbreak firmware 2.2.
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104 Comments
you can downgrade but once the modem firmware is 2.30.03 it cant be undone.. I hope the Dev team can help me us out here ASAP…
using a MAC and im attempting to follow these steps to downgrade from 2.2.1 to 2.2 but everytime I attempt to downgrade my firmware I get an error code 2001 and end up in recovery mode having to start over and update to the latest version which is 2.2.1. has anyone had this problem. if so I need assistance please help…. thx
My phone is factory unlocked, i just want to jailbreak it since i need the caller block app which only released in Cydia and Installer…and I do think updating to 2.2.1 would take advantage rather than downgrade to 2.2…at least it’s faster in loading webpage…any methods other than wait?
hello friend, please help!!!
i have just downgradet from 2.2.1 to 2.2 it works, but i have a modem firmware. 02.30.03 how can i change to 2.28 ??? thank in advance.
instruction work!!! it worked on 2nd try after err 1013
after above instruction, i tried QuickPawn 2.2.1
works like charm!! thanks
Pressing the Option + Restore on a MAC does not work for me. It just does not respond. I have iTunes version 8.0.2 (20) – perhaps this version of iTunes has some kind of block to prevent restoring prior to 2.2.1
What do you think?
well i keep getting an error saying i need dfu firmware and i cant seem to find it anyware anyone know where it is ?
i have an ipod touch 2nd gen. version 2.2.1(5H11a)
can i jailbreak it already??.. i need instructions pls.. thankyou..
2.2.1 is just a mess of my time! I really got stack, I was force to downgrade, I didn’t succeeded for that new numb firmware, I will just wait for 2.3
I used this to sucessfullY downgrade my iphone 2g (8gb) down to 2.2 and jail broke it!
thanks!!!
Those of you that are having trouble with downgrading your version 2.2.1 should just wait until the dev team comes out with the new hack for unlocking it. This new version 2.2.1 changes your baseband version which is probably causing all these problems. Even if you decide to jail break your phone by downgrading from 2.2.1, there is no unlock for it yet so you will still need to be using an att sim card to use your phone. I currently have one 2.2 unlocked iphone and one that was accidently upgraded to 2.2.1 by a friend so now it is currently a brick since I am using Tmobile. I feel all ya concerns but just relax until the team fixes this problem lol.
dang it. do you have any idea when it will come out ? i really need to jailbreak it. i accidently upgraded it and my baseband upgraded too ):
I’ve just got a new Iphone 3G / 2.2.1 (5H11).
I’d like to get Cydia on this phone.
What should I do? What is the procedure? Can it do any harm to the phone or disturb possible future official updates of the phone?
Thanks for some info.
Erik
i’ll be very thankful to the team if they can provide me the steps to downgrade from 2.2.1 to 2.1
thanx
Jailbreaking is not a problem; there’s already a quickpwn for fw 2.2.1. The problem is baseband 02.30.03 which cannot be unlocked. You’ll have to revert back to using a TurboSim in order to use the phone from another carrier other then ATT.
doug so if a have baseband 2.30.03 i cant not change it
i also upgraded by mistake, i am using my o2 sim still so if i downgrade my iphone bk to 2.2 from 2.2.1 will i still be able to jailbreakit with no problems or will mine also become a brick???
I fuckin hate apple….they are greedy corporate fucks, and because they were losing so much money they made the 2.2.1 firmware update??? I hope steve jobs chokes on my cock, I will never buy another apple product again, besides being overpriced.we wouldn’t have to hack them if they just got the clue and gave us a fuckin break already. now I got a brick for a phone…fuck you apple…fuck you steve jobs, i hope you all go bankrupt and get bit in the ass by your own karma…thanks for nothing. you fuckin dickheads.
I have a first generation Ipone, upgraded to 2.2.1 ran quickpwn 2.2.5 and now it is not starting, the apple start screen is coming and going and vibrates 2 times, after that it starts all over again, help me out please!
Please can anyone help me!!!. i also upgraded to 2.2.1 (5H11) to my iPhone 3G (16gig). when i see this “downgrade to firmware 2.2″ , i feel so happy and firstly i downloaded Firmware 2.2 for iPhone 3G from this website. Then i followed the procedure of downgrade and i restore my phone. Unfortunately, there was an error during downgrading.[" The iphone "iPhone"could not be restored. An Unknown error occured.(1013) "] like that. Actually, this is my first time of using iPhone. Please help me….!!!! THANKS SO MUCH…
i tried to doengrade 2.2.1 to 2.2 but at the end im getting a error msg like an unknown error occurred….wt can i do?? with 2.2.1 i cant unlock my mobile …can any 1 please tell me the solution or the step to unlock 2.2.1………
i have upgrade the firmware to 2.2.1 and i want to downgrade it to 2.2 again, i have tried your steps (press shift + restore) but the software update files (2.2) can not be found. is there something wrong with my computer or i did it wrong? Thanks!
u guys are dumb read the instructions and guess wat…… wow it works so easy!!! thanks for the downgrade tip