[Time_shifter]

Hey peeps,

the downgrade won't work. at least not for me. more than halfway through it will tell you that an error has occurred, and then you won't have any software on your phone until you're forced to upgrade again to 2.2.1. the only reason i had to update is because something went wrong with my phone after i updated some apps on cydia. only choice i had was to restore and at the time i didn't realize 2.2.1 was un-jailbreakable. if anyone has any other suggestions or success stories for downgrading to 2.2, it would definitely help!!

[Russian Stas]

Can anybody say when exactly the new jailbreak will be ready ??????????

[pro-beginner]

Hi I was about to upgrade to 2.2.1 but I saw the message from dev-team not to so I didnt. What I have now is firmware 2.11.07 and base band 2.1(5f136) I can quick pwn now but yellow snow works on 2.2 base band 2.28
My question is how can I update to 2.2 in order to quick pwn and use yellow snow. The only way I know is iTunes but now the only update they have is 2.2.1 which I want to avoid.
Unfortunately quick pwn doesn't update the iphone.
please help

[QuickPWN]

Originally Posted by pro-beginner

Hi I was about to upgrade to 2.2.1 but I saw the message from dev-team not to so I didnt. What I have now is firmware 2.11.07 and base band 2.1(5f136) I can quick pwn now but yellow snow works on 2.2 base band 2.28
My question is how can I update to 2.2 in order to quick pwn and use yellow snow. The only way I know is iTunes but now the only update they have is 2.2.1 which I want to avoid.
Unfortunately quick pwn doesn't update the iphone.
please help

You need to download the iPhone 3G firmware 2.2 IPSW file. Here is where you can download it from:
Firmware 2.2 download links

[af2k]

Hi guys,

I am since yesterday a "lucky" owner of an iPhone 3G.
It was already unlocked, but I -stupidly- made by mistake
an upgrade to 2.2.1 as its the first time I had an iPhone.

As I am an technician I have no problems with tutorials
and tools. I succeeded easily to downgrade the firmware
to 2.2. As with 2.2.1 I couldn't use it at all (not activated).
The following I have done:

1. Put the iPhone in the recovery mode.

2. Connect with iTunes, push the "Restore" button while holding SHIFT on your keyboard.

3. Select the 2.2 Firmware (iPhone1,2_2.2_5G77_Restore.ipsw).
iTunes will now begin to flash your device with the 2.2 Firmware.
It will(!) stop unfinished with an "unknown error occurred" and your
iPhone will stuck into a screen showing USB Cable and iTunes.
Just click the error away and close(!) iTunes.

4. Your iPhone is still stuck in the USB Cable/iTunes logo state.
Unplug the phone from the PC. Restart the phone (many times?).
I don't know what exactly brought me to the state, but after several
times restarting and trying recovery mode it bootet up! It showed for sure
"Not activated" / "Emergancy call". But THIS is exactly what we want.
Because the iPhone has now an (corrupted) version of 2.2,
this means QuickPwn won't complain anymore.

5. Start QuickPwn and connect your iPhone back. It should directly
show the iPhone. And then you can flash the 2.2 jailbreak version with QuickPwn

6. After this, you are done and back to the 2.2 Firmware

Sounds good, yeah? It is, but. The baseband got updated to 02.30.00.

For people who just wants a jailbreak it doesn't care. For people like me, who uses a different carrier, they need version 02.28.00 for yellowsn0w. I didn't found any working solution yet to downgrade the baseband back to the version out of Firmware 2.2 (baseband 02.28.00). Is there anybody who knows how to downgrade the baseband? This is the last step missing. Otherwise I have just an more-expensive iPod Touch ;-)

I hope my tutorial helped others and that someone has an idea about baseband downgrade.

Cheers!

[QuickPWN]

Hello af2k, unfortunately baseband upgrades are permanent and there is no way to downgrade basebands. yellowsn0w will no longer unlock your iPhone 3G.

[af2k]

Hiya,

Originally Posted by QuickPWN

unfortunately baseband upgrades are permanent and there is no way to downgrade basebands. yellowsn0w will no longer unlock your iPhone 3G.

so, that means that there is really absolutely no way to downgrade the baseband to an earlier version? So, everyone who flashed with version 2.2.1 and needs an unlock, won't be able anymore to unlock the phone unless the Dev Team finds a new security hole (what can take weeks/months). That's a very bad news.

Really sure that its not downgrade able?

[Time_shifter]

Originally Posted by af2k

Hi guys,

I am since yesterday a "lucky" owner of an iPhone 3G.
It was already unlocked, but I -stupidly- made by mistake
an upgrade to 2.2.1 as its the first time I had an iPhone.

As I am an technician I have no problems with tutorials
and tools. I succeeded easily to downgrade the firmware
to 2.2. As with 2.2.1 I couldn't use it at all (not activated).
The following I have done:

1. Put the iPhone in the recovery mode.

2. Connect with iTunes, push the "Restore" button while holding SHIFT on your keyboard.

3. Select the 2.2 Firmware (iPhone1,2_2.2_5G77_Restore.ipsw).
iTunes will now begin to flash your device with the 2.2 Firmware.
It will(!) stop unfinished with an "unknown error occurred" and your
iPhone will stuck into a screen showing USB Cable and iTunes.
Just click the error away and close(!) iTunes.

4. Your iPhone is still stuck in the USB Cable/iTunes logo state.
Unplug the phone from the PC. Restart the phone (many times?).
I don't know what exactly brought me to the state, but after several
times restarting and trying recovery mode it bootet up! It showed for sure
"Not activated" / "Emergancy call". But THIS is exactly what we want.
Because the iPhone has now an (corrupted) version of 2.2,
this means QuickPwn won't complain anymore.

5. Start QuickPwn and connect your iPhone back. It should directly
show the iPhone. And then you can flash the 2.2 jailbreak version with QuickPwn

6. After this, you are done and back to the 2.2 Firmware

Sounds good, yeah? It is, but. The baseband got updated to 02.30.00.

For people who just wants a jailbreak it doesn't care. For people like me, who uses a different carrier, they need version 02.28.00 for yellowsn0w. I didn't found any working solution yet to downgrade the baseband back to the version out of Firmware 2.2 (baseband 02.28.00). Is there anybody who knows how to downgrade the baseband? This is the last step missing. Otherwise I have just an more-expensive iPod Touch ;-)

I hope my tutorial helped others and that someone has an idea about baseband downgrade.

Cheers!

af2k,

so if you're using baseband and yellowsnow to downgrade, it won't work, but if you just want to jailbreak it using quickpwn, it will??

[ChipsXJ]

I had the same problem with 1013 error and no radio/activation.

I found this post ( Iphone 3G Downgrade steps, Yes it works!! )

and it worked perfectly for me when I followed it exactly.

[renannfortes]

Originally Posted by Time_shifter

af2k,

so if you're using baseband and yellowsnow to downgrade, it won't work, but if you just want to jailbreak it using quickpwn, it will??

Nope...i did it yesterday and i got my iPhone downgrade with 2.2 FW, I'm using an official carrier and it was unlocked but no signal at all...