An updated version of the redsn0w jailbreak utility has been made available to resolve a prominent bug with iBooks and also includes other minor bugfixes that could cause crashing. Versioned as Redsn0w 0.9.10b4, the new release continues to be an untethered jailbreak for iOS 5.0.1 for the iPhone 4 & 3GS, iPod touch 3rd & 4th gen, and iPad 1, and does not provide support to any other devices.

Fixing the iBooks problem for already jailbroken devices is simple enough, all that is required is to download and run Redsn0w 0.9.10b4 over an existing iOS 5.0.1 jailbreak to apply the fix.

Download Redsn0w 0.9.10b4

• Download now (Mac OS X)
• Download now (Windows)

Alternatively, the Corona untether has also been updated which applies the same iBooks patch without the need for using redsn0w again. Corona can be downloaded on any jailbroken device for free through Cydia.

Another day another version of redsn0w is released… Redsn0w 0.9.10b3 includes a bug fix that caused some apps to not be able to run after the jailbreak was completed. I didn’t run into any problems on an iPhone 4, but if you did encounter any issues with apps crashing with the prior redsn0w jailbreak then you can go ahead and use the latest version to resolve them.

To fix an existing jailbroken device, all you need to do is run the newest 0.9.10b3 version over your existing jailbreak, just be sure to uncheck the “Install Cydia” option.

Nothing else is different about this release, it continues to be an untethered jailbreak for iOS 5.0.1 on iPhone 4, iPhone 3GS, iPod touch 3rd & 4th gen, and iPad 1. If you’re not sure what to do, read our guide to jailbreak iOS 5.0.1 untethered using Redsn0w.

Download Redsn0w 0.9.10b3

• Download now (Mac)
• Download now (Windows)

If you are not currently experiencing problems with your jailbreak, this is probably not a necessary download.

A new tool has been released that untethers existing tethered jailbreaks for iOS 5.0.1. This means that if you are using a tethered jailbreak right now, you can download a free package from Cydia to untether your jailbreak and never have to boot with redsn0w assistance again. The package is called Corona and it’s very easy to install.

The current version of Corona untether is compatible with iOS 5.01 on iPhone 4, iPhone 3GS, iPod touch 3rd or 4th gen, iPad 1.

How to Convert a Tethered iOS 5.0.1 Jailbreak into Untethered with Corona

Do this from the currently tethered jailbroken device running iOS 5.0.1:

• Launch the Cydia app and search for “Corona”
• Tap on “Corona 5.0.1 Untether” and then tap the “Install” button in the upper right corner
• Reboot the device

The iOS device will now be untethered, able to reboot at will without connecting to a computer.

If for whatever reason you don’t want to use Corona, you can also download the untethered redsn0w and jailbreak iOS 5.0.1 untethered by running the new version over an existing tethered base, but that is more work than necessary. Corona is by far the easiest choice, and unless you plan on performing a clean installation, it’s the way to go.

The untethered iOS 5.0.1 jailbreak has finally arrived, and it’s extremely easy to use. We’ll walk you through the process, but before proceeding make sure you meet the following requirements:

• Compatible device: iPhone 4, iPhone 3GS, iPad 1, iPod touch 3rd gen, iPod touch 4th gen
• iOS 5.0.1 installed
• Download Redsn0w 0.9.10b (Direct: Mac OS X or Windows)

iPad 2 and iPhone 4S are not yet compatible due to their use of the A5 CPU, that is a currently a work in progress.

How to Jailbreak iOS 5.0.1 Untethered Using Redsn0w

This walkthrough is intended for those who are currently unjailbroken and using a stock iOS 5.0.1 installation. The instructions are the same for both Mac and Windows and for all iOS hardware:

• Launch Redsn0w
• Connect the iOS device to the computer and then turn it off
• Launch Redsn0w and click on “Jailbreak”
• Put your iPhone, iPad, or iPod touch into DFU mode: Hold the power button for 3 seconds, continue holding Power button and additionally hold the Home button for 10 seconds, release the Power button but continue to hold the Home button for another 15 seconds
• Let redsn0w do it’s thing, make sure “Install Cydia” is checked, and let the jailbreak install

The iPhone, iPad, iPod touch will reboot and be jailbroken, find and launch Cydia to verify the jailbreak worked. The untethered solution is obviously much easier than the tethered options, there is no redsn0w boot assistance needed after the device turns on and off, and the installation is simplified as well. Enjoy the jailbreak.

Note for Windows users: be sure to run Redsn0w in Administrator mode, this can be done with a right-click.

Already jailbroken? Here is how to convert a tethered iOS 5.0.1 jailbreak into untethered with Corona, it’s very easy and doesn’t require redsn0w.

The much anticipated untethered jailbreak for iOS 5.0.1 has arrived in the form of Redsn0w 0.9.10b1, courtesy of the iPhone Dev Team and jailbreaker @pod2g.

Redsn0w will provide an untethered jailbreak to the following iOS 5.0.1 devices: iPhone 4, iPhone 3GS, iPad 1, iPod touch 3rd gen, iPod touch 4th gen. For iOS devices based on the A5 CPU, like the iPhone 4S and iPad 2, the jailbreak is not yet available but is expected to debut soon.

Download Redsn0w 0.9.10b2

Download and follow the in-app instructions, it’s very easy:

• Download now (Mac OS X)
• Download now (Windows)

For the Windows version make sure to run it in ‘Administrator’ mode.

If you haven’t upgraded to iOS 5.0.1 yet due to the lack of an untethered jailbreak, you can do that now either with iOS 5.01 IPSW or through iTunes Software Update. After you’re on the latest iOS 5.0.1 version, you can then run redsn0w. If you are already on iOS 5.0.1 and using a tethered jailbreak, you can run this version of redsn0w directly over your existing jailbreak to untether it.

Update: Here is a guide on how to jailbreak iOS 5.0.1 untethered with redsn0w

Ultrasn0w 1.2.5 has been released and it allows for unlocking some iPhone 3GS and iPhone 4 models with older modem firmware versions. Compatible baseband is as follows:

• iPhone 4: 01.59.00
• iPhone 3GS: 04.26.08, 05.11.07, 05.13.04, 06.15.00

You can check baseband on the iPhone by tapping on Settings > General > About and looking for “Modem Firmware” near the bottom of the About screen.

If your iPhone 3GS or iPhone 4 has eligible baseband and is already jailbroken, then you can just search Cydia for “ultrasn0w” and download and install the latest version. Reboot the iPhone and you’ll be able to use the new unofficial network. If you’re not sure what to do, follow the instructions below:

How to Unlock iPhone 3GS & iPhone 4 on iOS 5.0.1 with Ultrasn0w

Be sure to confirm baseband firmware before proceeding:

• Jailbreak iOS 5.0.1 with redsn0w 0.9.9b9 and then boot the iPhone tethered
• Open Cydia and search for ultrasn0w, installing the ultrasn0w 1.2.5 package onto the iPhone
• Shut off the iPhone and insert the new SIM card from another carrier
• Boot the iPhone tethered using redsn0w again
• Wait for the iPhone to join the new network

Most iPhones won’t be eligible to use this version of ultrasn0w due to the baseband limitation. Keep in mind you can now buy the iPhone 4S unlocked directly from Apple, they aren’t cheap but you won’t have to bother with jailbreaks, software unlocks, or preserving baseband versions between iOS upgrades, and will always be free to use the iPhone on whatever compatible network you have a SIM card for.

Update: An untethered version is now available, here is our guide: How to jailbreak iOS 5.0.1 untethered with redsn0w.

Redsn0w 0.9.9b9 isn’t the first jailbreak for iOS 5.0,1, but it’s certainly much easier to use thanks to native 5.0.1 support. This basically means you don’t have to point it at older firmware to perform the jailbreak, but it does still require a tether boot.

Requirements:

• iOS 5.0.1 installed
• iPhone 4, iPhone 3GS, iPad 1, or iPod touch 3rd & 4th generations

If you already have iOS 5.01 installed you do not need to download any IPSW files.

Jailbreaking iOS 5.0.1 using Redsn0w 0.9.9b9

These instructions are the same for all compatible iOS devices and from running redsnow in Mac OS X or Windows:

1. Download redsn0w 0.9.9b9d: Mac OS X or Windows
2. Launch Redsn0w and click on “Jailbreak”
3. Put the iOS device into DFU mode by holding down the power button for 3 seconds, then start holding the Home button as well for an additional 10 seconds, then release the Power button but continue to hold the Home button for another 15 seconds
4. Wait while the jailbreak is installed, this will take a few minutes. When finished you will see a “Tethered Jailbreak” popup window reminding you of the tethered status and the iPhone screen will no longer display gibberish text
5. Still in Redsn0w, click back to the first screen and click on the “Extras” button
6. Click on “Just Boot” and put the device back into DFU mode again the same way as before, or follow on screen, then let the iOS device boot tethered

Your iOS device will now boot jailbroken and is free to use Cydia.

Remember that if the battery dies or if you reboot the device manually, you’ll need to perform the tethered boot with redsn0w assistance again. This is the difference between a tethered vs untethered jailbreak and why people prefer untether solutions, the untether is in the works for iOS 5 but not yet available to the public. We’ll keep you posted when we learn more.

Update: Links to redsn0w 0.9.9b9d have been updated.

Update 2: You can now untether existing iOS 5.0.1 jailbreaks with Corona

Update 3: Redsn0w 0.9.10b1 is an untethered jailbreak now available, here is how to use it

Redsn0w 0.9.9b9 has been released by the iPhone DevTeam to jailbreak iOS 5.0.1. It is still a tethered jailbreak and the process is mostly the same as before, except users no longer have to point the redsn0w application at older 5.0 IPSW.

Supported hardware continues to be iPhone 4, iPhone 3GS, iPad 1, iPod touch 3rd or 4th gen. The iPad 2 and iPhone 4S are yet to work, but the upcoming untethered iOS 5 jailbreak should bring those two devices as well.

Download Redsn0w 0.9.9b9d

Mac and Windows versions are available:

• Download now (Mac OS X)
• Download now (Windows)

If you’re already jailbroken on iOS 5.0.1, this version of redsn0w won’t be of much use to you, although the updated version includes a variety of bug fixes and minor changes to supported hardware.

Update: Here is a guide on how to use redsn0w 0.99b9 to jailbreak iOS 5.01

Update 2: Updated links to latest version, Redsn0w 0.9.9b9d

iOS 5.0.1 with its bug and battery fixes can be jailbroken using the latest version of the redsn0w tool. For now, this is still a tethered jailbreak, but the semi-tether from Cydia works.

Update: An untethered Redsn0w jailbreak is out for iOS 5.0.1!
If you don’t like the tethered boot process, hold out for an untethered release which is actively being worked on by the Dev Team, no ETA is available for that however.

Requirements

• A supported iOS device: iPhone 4, iPhone 3GS, iPad 1, iPod touch 3rd or 4th gen – there is currently no support for iPad 2 or iPhone 4S
• iOS 5.0.1 installed already – download it here or use the OTA update if you haven’t already
• The previous iOS 5 IPSW for the device
• Redsn0w 0.9.9b8 – get it for Mac or grab it for Windows

The jailbreaking process will be familiar to anyone who has done this before or who has used a custom IPSW. The main thing to remember here is that you are pointing at the older IPSW file despite running a newer version of iOS, this will continue to be the case until a new version of redsn0w is released to circumvent that aspect of the procedure.

Jailbreaking iOS 5.0.1 with Redsn0w

• Turn the iOS device off and then connect it to the computer
• Launch Redsn0w and click the “Extras” button, then click on “Select IPSW” – locate the iOS 5 IPSW (not iOS 5.0.1) and click “Open”
• Click “Back” to return to the original Redsn0w screen and click on “Jailbreak” as usual
• Put the iOS device in DFU mode as redsn0w instructs, holding down the Power and Home button for 10 seconds, then release the power button but continue to hold the Home button for another 15 seconds or so
• As the jailbreak works, the iPhone/iPad/iPod will reboot and you’ll get a notification that it requires a tethered boot, let the device boot up as usual and then put the hardware into DFU mode yet again so you can perform the tethered boot and get Cydia to work
• Back in Redsn0w, go to “Extras” and select the iOS 5.0 IPSW again, then click on “Just Boot” at the top of the “Extras” menu to perform the tethered boot
• Enjoy your jailbreak

If you have a white Cydia icon it’s because you didn’t perform a tethered boot properly, so just go through that step again and you’ll be fine. From this point it’s recommended to install the semi-tether since it improves the experience, it’s a free download from the Cydia store.

If all of this seems confusing or causes a headache, just wait until a new version of redsn0w is available or better yet wait for the untether.

Update: The untethered jailbreak for iOS 5.0.1 has been released, you can read how to use it here or download the newest redsn0w.

The first generation iPad got iOS 5, but it didn’t officially get multitasking gestures or display mirroring. Not a huge deal, because a user on ModMyi figured out how to enable these two features and has released a modified version of redsn0w so that it unlocks these abilities, without a jailbreak. It’s pretty easy to use, so if you want to enable these features here’s how to use the tool and make your first-gen iPad feel a bit more modern.

Warning: This is for iPad 1 only. The gestures and mirroring already exist on iPad 2 making this unnecessary. Backup your iPad beforehand just in case something goes wrong, and proceed at your own risk.

• Download the modified version of redsn0w that carries the tweaked payload
• Download for Mac
• Download for Windows
• Connect the iPad to the computer
• Turn off the iPad
• Launch redsn0w and select “jailbreak” (no it won’t actually jailbreak if you follow the rest of the instructions)
• Follow the onscreen instructions to put the iPad into DFU mode
• Uncheck “Install Cydia” – this stops the jailbreak nut enables the multitasking and mirroring
• Check “Enable Multitask Gestures”
• Click “Next” and let the process complete and the iPad reboot
• When the iPad restarts, go to “Settings” and tap on “General” to find “Multitasking Gestures” and be sure that is set to ON

Once it’s turned on, the easiest way to verify is by pinching with four fingers to see if you return to your home screen.

The Multitasking Gestures
Using four or five fingers you can…

• Pinch to the Home Screen (much like OS X Lion pinches to Launchpad)
• Swipe up to show the multitasking bar of running apps
• Swipe left or right between open applications

Display Mirroring
Display Mirroring only works with HDMI cables and not AirPlay

For those interested in the technical details of this, here’s the source code (via ModMyi user dB) for the modification:

Thanks for sending this in Daniel