Redsnow is easy to use, it is available for Windows and Mac OS. Pwnagetool can be used to create custom ipsw and preserve baseband, it supports Mac OS only.
Ultrasn0w doesn’t work on iOS 4.3.1 yet (even with iOS 4.3.1 + old baseband). The fix will be available soon. Here’s a warning from DevTeam for unlockers:
ultrasn0w users don’t update yet! We need to first release an update to ultrasn0w that fixes some incompatibilities when FW 4.3.1 is used on the older basebands supported by ultrasn0w. And remember once we do fix ultrasn0w for 4.3.1 (we’ll announce it here and on twitter), you must only get there via a custom IPSW from PwnageTool, Sn0wbreeze or xpwn! Don’t ever try to restore or update to a stock IPSW, or you’ll lose the unlock!
Redsnow is easy to use, it is available for Windows and Mac OS. Pwnagetool can be used to create custom ipsw and preserve baseband, it supports Mac OS only.
Ultrasn0w doesn’t work on iOS 4.3.1 yet (even with iOS 4.3.1 + old baseband). The fix will be available soon. Here’s a warning from DevTeam for unlockers:
Hacker I0nic has given his untether exploit for the iOS 4.3.1 jailbreak to the iPhone Dev-Team. They will perform testing and integrate it into their jailbreak utilities – redsn0w and pwnagetool. This untethered jailbreak will probably work for iPhone 3GS, iPhone 4, iPod Touch 3G, iPod Touch 4G and iPad.
The iphone-dev-team is already beta-testing the untether. So it is up to them to give you your tool of choice.
Please don’t bother the dev-team now. The deal is: if the beta test is successfull, they are free to do whatever they want with it.
Hackers have released Sn0wBreeze 2.4 beta 1 utility, which is able to jailbreak the latest iOS 4.3.1. This jailbreak is tethered for iPhone 4, iPhone 3GS new bootrom, iPad, iPod Touch 3G, iPod Touch 4G. Tethered means that every reboot you will have to connect device to a computer and boot it using special utility (iBooty). Sn0wBreeze 2.4 beta 1 provides untethered jailbreak for iPhone 3GS old bootrom.
Sn0wbreeze also preserves your baseband, which is very useful for unlockers. Using Sn0wbreeze you can update firmware iOS 4.3.1, while preserve old unlockable baseband. It also works with iPhone 3GS with 06.15 baseband.
It is still beta, so there might be bugs so use at your own risk.
You can download Sn0wBreeze 2.4 beta 1 for Windows here.
Hackers released Sn0wBreeze 2.3 beta 4 utility, which is able to jailbreak the latest iOS 4.3. This jailbreak is tethered for iPhone 4, iPhone 3GS new bootrom, iPad, iPod Touch 3G, iPod Touch 4G. Tethered means that every reboot you will have to connect device to a computer and boot it using special utility (iBooty). Sn0wBreeze 2.3 beta 4 provides untethered jailbreak for iPhone 3GS old bootrom.
Sn0wbreeze also preserves your baseband, which is very useful for unlockers. Using Sn0wbreeze you can update firmware iOS 4.3, while preserve old unlockable baseband. It also works with iPhone 3GS with 06.15 baseband.
You can download Sn0wBreeze 2.3 beta 4 for Windows here.
Apple just released new iOS 4.3 firmware. Jailbreakers and unlockers should wait for new tools. Everybody else will benefit. iOS 4.3 has Safari speed improvements, AirPlay features, hotspot, Home sharing, a new option for customizing the iPad’s side switch to serve as a mute toggle or screen orientation lock and much more:
This update contains new features and improvements, including the following:
* Personal Hotspot
- Share iPhone 4 cellular data with up to 5 devices (combination of up to 3 Wi-Fi, 3 Bluetooth, and 1 USB)
* iTunes Home Sharing
- Play music, movies, and TV shows from a shared iTunes library on a Mac or PC (requires iTunes 10.2)
* New AirPlay features
- Play videos from the Photos app including the Camera Roll album, iTunes previews, enabled third-party apps and websites on Apple TV
- Play slideshows from Photos on Apple TV using transitions available on Apple TV
* Faster Safari performance with Apple Nitro JavaScript engine
* HD video out using the Apple Digital AV Adapter
- View 720p HD videos from Videos app, iPod app, Photos, YouTube, Safari, Keynote, and enabled third-party apps on an HDMI display
* Ping features
- Push notifications for comments and follow requests
- Post and Like songs directly from the Now Playing screen
- Parental controls
* New Settings
- Messages setting for number of times to repeat an alert
- iPad side switch setting to lock screen rotation or mute audio notifications and sound effects
* Single tap conference call dialing with a pause to send a passcode
UPDate 2: Attention! We’ve received info, that Apple stopped signing iOS 4.2 for devices for which iOS 4.3 is available. This means you will not be able to restore to 4.2.1 without saved SHSH keys.
Using this tutorial you will be able to jailbreak iOS 4.2.1 running on iPhone 3G, iPhone 3GS, iPhone 4, iPod Touch 3G, iPod Touch 4G and iPad. Pwnagetool will also preserve baseband version if you need carrier unlock. If you have updated the baseband to version 06.15, you can use this tutorial. This tutorial uses PwnageTool 4.2 for Mac OS X.
We are not developers of jailbreak utilities, so we cannot assure that everything will work just fine. However we tried this tutorial on several devices and succeeded.
We will use iPhone 4 in our jailbreak tutorial. The process is the same for all devices.
Step One
Make a folder called “Pwnage” on the desktop. Download a couple of things:
Apple stopped to support original iPhone 2G and iPod touch 1G starting from iOS 4.0. Their decision was justified because of the low RAM and sow CPU in these first-gen devices released back in 2007.
iPhone jailbreak community has now come up with a mod, which brings the complete look and feel of iOS 4.2.1 for iPhone 2G, 3G and iPod touch 1G and 2G. The mod is basically based on the iPhone OS 3.1.3, to replicate the experience of iOS 4 on the first and second generation iPhone and iPod touch.
This custom firmware, named WhiteD00r, includes everything from iOS 4.x: wallpapers, new semi transparent dock (and UI), backgrounds, all new icons from iOS 4.x, Voice Control, multitasking, video recording, and more. Full list of features can be found here.
Moreover WhiteD00r was also relased for iPhone 3G and iPod touch 2G. Regular iOS 4.х works really slow, on these devices, while modified 3.1.3 has much more chances.
WhiteD00r custom 4.2.1 firmware for iPhone 2G, iPhone 3G, iPod touch 1G and iPod touch 2G can be downloaded from here.