How to Downgrade Baseband 2.30.03 to 2.28.00

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[digg-me]Since firmware 2.2.1 came out and updated the baseband from 2.28.00 to 2.30.03, many people accidentally updated, and are now stuck on baseband 2.30.03. I wonder how you can "accidentally update" your firmware as it takes a few steps, but anyways... I've had a few emails from people asking me how to downgrade baseband 2.30.03 to 2.28.08.

If you're looking to unlock your iPhone with YellowSn0w, you can't do that as long as you will on baseband 2.30.03. Unfortunately, you can not downgrade baseband 2.30.03 to 2.28.00! Sorry folks but you should have read the Dev Team's warning!

Now the good news is that I'm very confident the Dev Team is working on updating YellowSn0w so it works with firmware 2.2.1, baseband 2.30.03.

You can still downgrade your firmware from 2.2.1 to 2.2 in iTunes by hitting SHIFT + RESTORE and selecting firmware 2.2 but you will most likely have errors and even if you manage to downgrade, you still won't be able to downgrade the baseband.

UPDATE: It's now possible to downgrade your baseband thanks to pHaseBanDowngrader

pH (Pedro Henrique Franceschi) created a tool to help you downgrade your baseband from 2.30.03 to 2.28.00. To use this tool, you have to have to have an iPhone with bootloader 5.8. If your iPhone was manufactured before September 2008, you're good. If you bought your iPhone after September 2008 with firmware 2.2.1 out of the box, then you can't use pHaseBanDowngrader because your bootloader is 5.9.

Here are the instructions on how to downgrade using pHaseBanDowngrader:

1. Download this file 2. SSH into your iPhone and put the downloaded folder (phasebandowngrader) inside the folder /Applications/ 3. In MobileTerminal.app, type “login” and enter “root” as user, the default password is “alpine” 4. Now, type “cd /Applications/phasebandowngrader && ./phasebandowngrader”. Follow the screen instructions 5. Done!

Again, a big Thank You to pH for developing this tool.

PwnageTool 2.2.1 Guide & Tutorial

This tutorial will show you how to use PwnageTool to jailbreak your iPhone firmware 2.2.1. Note that PwnageTool only works with Mac OS X. PwnageTool will create a custom 2.2.1 firmware that you will then load to your iPhone. This will allow you to update your iPhone without updating the baseband, which is a very important feature if you're considering using YellowSn0w to unlock your iPhone.

QuickPWN 2.2.1 Guide & Tutorial

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[digg-me]This guide will show you how to use QuickPWN to jailbreak your iPhone firmware 2.2.1. Please read carefully all the steps and warnings before attempting to use QuickPWN to jailbreak your iPhone. The following tutorial is for PC users.

UPDATE: I closed the comments on this post. If you have any question about QuickPwn, please ask your question in the forum.

Dev Team Updates QuickPWN and PwnageTool for 2.2.1

I thought the Dev Team would release updated version of QuickPWN and PwnageTool sometimes next week, but as usual, they were faster than I expected. In a blog post, the Dev Team gives us more info about these 2 jailbreaking tools and also tells us about the dos and donts.

I could try to paraphrase what they said but I think it's better I just copy/paste their post entirely. I do not like doing this but I believe it is very important information that shouldn't be disregarded.

I highly suggest you go visit the Dev Team blog and leave a nice comment over there. Click here to read this post on the Dev Team blog.

You can expect a QuickPWN guide and tutorial from me within the next couple hours, so stay tuned!


Tutorial for QuickPWN: QuickPWN 2.2.1 Guide Tutorial for PwnageTool: PwnageTool 2.2.1 Guide

This is the low down on our tools for use with the 2.2.1 firmware from Apple, read the whole post in full before attempting anything.

GOLDEN RULE: If you have a 3G iPhone running 2.2 firmware and you want to keep your ability to use yellowns0w (or the option to use it in the future) do NOT use QuickPwn, and do not use the official ipsw or the iTunes update process without using PwnageTool. Yellowsn0w will NOT work with the baseband version (02.30.03) that is present in the recent 2.2.1 update  - you will need to create a custom ipsw that will allow you to update safely without affecting the baseband. Please read all parts of this post before downloading and using these tools. Read items 1, 2 and 3 again and again. At the bottom of this post are the bittorrent files for the latest versions of PwnageTool and QuickPwn. These apps are suitable for the recent 2.2.1 release. The Yellowsn0w version has been updated to 0.9.7. Yellowsn0w is available from Cydia or Installer - this version allows compatibility with pwned 2.2.1 system (not baseband) - again - remember 0.9.7 yellowsn0w DOES NOT WORK WITH 2.2.1 (02.30.03) directly - you need to be running a ‘pwned’ version of 2.2.1 which doesn’t upgrade the baseband. Users of OS X 10.5.6 will be unable to use DFU mode correctly, please see the note towards the end of this post to easily fix this issue.

Baseband 101

The ‘baseband’ is the generic name given to the internal components of the iPhone that handle the phone calls and Internet access. This ‘baseband’ is a tiny and unique independent computer system that runs inside your iPhone, it is separate to the main system that handles the applications (such as email and google maps) and it talks to the main part of the phone over an internal communications network. Think of it like a cable modem or other peripheral that is attached to your home PC that needs occasional updates. When a software update is released and presented to you within iTunes the baseband is sometimes updated (to fix bugs or add new features). The 2.2.1 update for the iPhone 3G contains such an update, so running the vanilla updater straight away with iTunes will reprogram and update the baseband. This could be bad for certain people, depending on your ultimate aim.

SIM Free/SP Unlocked/Factory Unlocked iPhone 3G

This applies if you bought your iPhone 3G for $$$$$$$. This model of iPhone 3G doesn’t have an Service Provider lock (aka factory unlocked) and you are able to put any SIM card into the phone and get service. Your phone is already unlocked so you do not need to worry about baseband updates, simply upgrade to 2.2.1 using iTunes and then use QuickPwn to Pwn and Jailbreak. This will add Cydia and Installer too.

Locked iPhone 3G - Preserve Baseband

This applies if you have a locked iPhone 3G and you wish to update to 2.2.1 but preserve the iPhone’s current baseband software. Preserving the baseband will ensure that you can still use “yellowsn0w” the iPhone 3G unlock application. To upgrade your phone to 2.2.1 and preserve the state of the baseband you need to create a custom .ipsw with PwnageTool. This custom .ipsw will not contain the baseband update but of course will still give you any new stuff from 2.2.1

There are plenty of tutorials about this process on the web, but PwnageTool contains intuitive graphics and easy to follow prompts that should have you up and running in no time at all. Please note: PwnageTool is only available for Mac OS X.

Locked iPhone 3G

If you are using your iPhone with one carrier and have no interest in the possibility of an iPhone 3G unlock in the near future then just restore or upgrade to 2.2.1 using iTunes and use QuickPwn to Jailbreak and add Cydia and Installer.

iPhone 2G (1st Generation)

Update or Restore your iPhone 2G with iTunes then run QuickPwn to do the magic, ‘nuff said, you don’t need to worry about anything. iPod Touch 1G (Original iPod Touch)

Update to 2.2.1 with iTunes and run QuickPwn. iPod Touch 2G (New iPod Touch)

Sorry, no support at this time, but Redsn0w is being actively researched and developed.

Fixing DFU mode on 10.5.6

As noted previously OS X 10.5.6 introduced a bug that affected the use of DFU mode. with some Macs. There have been previously published hacks and techniques to fix this, but here is another method that can be used to easily restore functionality.

You will need an account with ADC (Apple Developer Connection) this is free and takes a few minutes to sign up, you should read the terms and conditions carefully and you should only sign up if you are thinking of developing applications in the future - http://developer.apple.com/mac/ Download the disk image “IOUSBFamily Log release for Mac OS X 10.5.5 Build 9F33” (yes, that is a “5” in 10.5.5 - this is a developer debug package of the USB kernel extension). Install IOUSBFamily-315.4.1.pkg from within the disk image Reboot your system!

Official Bittorrent Releases -

PwnageTool 2.2.5 for Mac OSX is here SHA1 Sum - 8fe2f20c00f48b37d8262d6872a12166c6e165ba QuickPwn 2.2.5 for Mac OSX is here SHA1 Sum - 2f1353242ef10dc408e95786643e497fcd04e4ea QuickPwn 2.2.5-2 for Windows is here SHA1 Sum - 82aae63218316af42e4fa20f8c69d9eb4fe9d4ee

Click here for the official blog post by the Dev Team.

Sorta QuickPWN 2.2.1 Is Out. I Say Stay Away

I knew it wouldn't take long for some hacker to come up with an unofficial version of QuickPWN to jailbreak the new firmware 2.2.1. This time, it's Russian hacker Vortex that created the bundles and if I can give you a piece of advice, STAY AWAY from it.

People using this unofficial QuickPWN had varied results. So again, wait for the Dev Team to come up with an official version. They are most likely already working on it and I bet you we'll have updated versions of QuickPWN and PwnageTool within a week.

As usual, I will give you the heads up when I have more info!

If you really can't wait and want to take the risk of messing up your iPhone, then you can download this unofficial version of QuickPwn here.

UPDATE: Just got a tweet from MuscleNerd saying "iphone users in particular (even 2G) can do permanent damage running "untrusted" bundles (either broken or intentionally bad)"

If I wasn't clear enough before... DO NOT USE unofficial versions of QuickPWN or PwnageTool!

Heads Up On Firmware 2.2.1 And Jailbreak/Unlock

Since firmware 2.2.1 was released yesterday, a lot of concerns were raised whether or not you should update. The quick answer is NO, do not update if you care about your jailbreak or your unlock. MuscleNerd released a video on Qik giving us more info about the situation. Below are notes from the video.

About the iPhone 3G:

If you use YellowSn0w, you do not want to update to 2.2.1 as it will remove the possibility to install it. The only way you could do it is my installing a custom firmware that doesn't update the baseband. PwnageTool and QuickPwn do just that but they haven't been updated for 2.2.1 yet so wait for them to come out.

About the iPod Touch 2G:

The 2.2.1 firmware doesn't affect your ability to jailbreak your iPod Touch 2G. It didn't remove the ability for the Dev Team to do a tethered jailbreak. The Dev Team is still looking for an exploit to allow an untethered jailbreak. In other words, hang in there, they are working on it.

About iPhone 2G and iPod Touch 1st Gen:

2.2.1 doesn't affect your ability to jailbreak or unlock but again, wait for an updated version of QuickPwn and PwnageTool to do that.

As usual, I will report to you as the news come about 2.2.1 and jailbreaking/unlocking so you may want to subscribe to the RSS feed to be notified in time.