iphone
OS 5 can already be jailbroken thanks to the iPhone Dev Team’s quick release of a new version of redsn0w (0.9.9b7). This is currently a tethered jailbreak, but an untether is in progress.
Redsn0w will work to jailbreak iOS 5 on iPhone 3GS, iPhone 4 CDMA & GSM, iPod touch 3rd & 4th gen, and iPad 1. Not supported yet are iPhone 4S and iPad 2 devices, due to their use of the A5 CPU.
Before getting started, download iOS 5 and update your hardware, keep the IPSW around, but also be sure to have updated to iTunes 10.5.
Download redsn0w 0.9.9b7
You will need redsn0w 0.9.9b7 to get started, download it now for Mac (v 0.9.9b7 here) or for Windows (direct download links)
Jailbreaking iOS 5
- Launch Redsn0w and choose the “Jailbreak” button
- Connect the iOS device to the computer and turn the hardware off
- Enter DFU mode by holding down the Sleep/Power button and home button together for exactly 10 seconds, then release the Power button but continue to hold the Home button for another 15 seconds. You will get a notification from Redsn0w informing you of the device being in DFU mode
- Point redsn0w to your iOS 5 IPSW file (older version)
- Redsn0w will now perform the jailbreak, the newest version does not require you to have to point to any IPSW files because it downloads them directly from Apple
- Choose “Install Cydia” and proceed with the jailbreak
Now you need to boot the iOS device tethered to get Cydia to load:
- Open redsn0w again
- Click on “Extras” and select the iOS 5 IPSW you downloaded in the previous step
- Back at the Extras menu, click on the “Just Boot” option and follow the on screen instructions to boot into the jailbroken device
Your iOS device will automatically reboot as jailbroken, you can confirm this by looking for the Cydia icon on your springboard. As previously stated, this is a tethered jailbreak so you will need to connect your iPhone, iPad, or ipod touch to a computer and boot it with the assistance of Redsn0w if the battery dies or you shut it down for another reason. This is easy to do, just launch Redsn0w again and choose “Just Boot” again from the Extras menu.
25 Jul 2011 – Jailbreak 4.3.5 with Redsn0w: We have tested and can confirm that
4.3.5 jailbreak is possible with Redsn0w. You can
jailbreak 4.3.5 on
iPhone ...
Update: iPhone 4 users who rely on a carrier unlock must check out our iOS 4.3.5 jailbreak guide using PwnageTool here.
Apple has unexpectedly pushed out an incremental update for iOS 4.3.x, and it is dubbed as iOS 4.3.5. This minor release is no more than a security update, aiming to patch issues with certificate verification.
The good news is that we have tested it and can confirm that the current version of Redsn0w can jailbreak the just released iOS 4.3.5 on iPhone 4, 3GS, iPad 1, and iPod touch 4G/3G. But it will be limited to tethered boot, which means you will have to reconnect your device to your computer every time you reboot your iOS device. iPad 2 is obviously not supported. This has also been confirmed by MuscleNerd of iPhone Dev Team:
@zaone @m1ckey29 ah ok thanks for checking! So those who really do want tethered 4.3.5 can use redsn0w pointed at 4.3.4 (except iPad2)
Note: Those relying on a carrier unlock must stay away from Redsn0w.
How to Jailbreak iOS 4.3.5 (Tethered)
Step 1: Download iOS 4.3.5 and iOS 4.3.4 (required by this version of Redsn0w) firmware file for your device from the links given at the end.
Step 2: Download Redsn0w 0.9.8b4 for Windows or Mac. Also make sure you are running the latest version of iTunes, which is version 10.4.
Step 3: Now start Redsn0w, browse for the iOS 4.3.4 firmware file (NOT the 4.3.5) that you downloaded in Step 1 and point it towards Redsn0w. Refer to the screenshots below:
Step 4: Once Redsn0w is done recognizing the firmware file, click Next and there you’ll be taken to a new window. Simply check the “Install Cydia” box as shown below and leave other options as it is for now. Once done, click Next.
Step 5: On this screen, Redsn0w will instruct you to power down your device and plug it in to your computer. Follow the onscreen instructions and then click Next to continue.
Step 6: On this screen you will have to put your device in DFU mode with a combination of the Power button and the Home button for a certain amount of time, simply follow the onscreen instructions on how to do so. The combination is usually like this:
- Hold down Power button for 5 seconds.
- Now without releasing the Power button, hold down the Home button simultaneously with the Power button for 10 seconds.
- Let go of the Power button but keep on holding the Home button for another 15 seconds.
If you performed the above mentioned steps correctly, then your device should be in DFU mode.
Step 7: Redsn0w will now jailbreak your device, don’t do anything weird at this point, just let Redsn0w finish. We would recommend that you don’t do anything with your PC or Mac at all during the process. Sitting idle and waiting for the process to end on its own is much advised.
Since this is a tethered jailbreak, therefore whenever your iOS device loses power, it will go into the dreaded Apple logo boot screen loop. To get out of that, simply start from Step 3 again and in Step 4, uncheck “Install Cydia” and instead check “Just boot tethered right now” option and hit “Next” with your iPhone, iPad or iPod touch connected to your PC or Mac. And yes, you will have to do this every time when your device reboots or loses power.
That’s it! You should now have a jailbroken iPhone, iPad, or iPod touch running iOS 4.3.5.
Download iOS 4.3.5 for iPhone 4, 3GS, iPod touch and iPad
Download iOS 4.3.4 for iPhone 4, 3GS, iPad, iPod touch
Download Redsn0w 0.9.8b4 for Windows
Download Redsn0w 0.9.8b4 for Mac
Download iTunes 10.4 for Windows & Mac
Downgrade iOS 5 To 4.3.3, 4.3.5 On iPhone 4, 3GS, iPad 2, iPad 1, iPod touch [How To Tutorial]
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With final version of iOS 5 now available, there’s no surprise that many of you might be looking to upgrade your iPod touch, iPad or iPhone as soon as possible, but there are often reasonsnot to upgrade, such as the availability of certain jailbreak tweaks and last-minute bugs that might have slipped by Apple’s testing. If you have already upgraded, good news: you can downgrade your device back to iOS 4.3.5, 4.3.4, 4.3.3, 4.3.2, or 4.3 in a matter of minutes. Don’t know where to start? Then read on.
Due to the security checks that Apple has implemented over the years, it’s just not possible to install an old version of iOS once a new version is out to public on a device without a workaround. In order for this to work, you must have previously backed up SHSH blobs for the version of iOS you’re trying to downgrade to. If you’re still on an old version of iOS, we recommend you run a tool such as iFaith before you upgrade in order to back-up your blobs.
Once you’re sure you have what you need just follow the easy steps below.
Step 1: If you haven’t already, download the version of the iOS firmware you’re planning to downgrade to, which should be in the form of an IPSW file. For your convenience, we have placed the relevant download links below:
Step 2: Put your device into DFU mode – this will allow you to make some necessary changes in order to downgrade the system. In order to do this, turn your device completely off, press and hold the Power and Home buttons (simultaneously) for 10 seconds, then release the Power button but keep holding the Home button for 10 more seconds. If you’ve entered DFU mode successfully, your screen should now be blank (it shouldn’t display the iTunes logo), otherwise just repeat this step. It might take several tries to get it right.
Step 3: We now must trick iTunes into accepting an old firmware by preventing it from connecting to Apple’s servers. In order to do this, launch Explorer (on Windows) or Finder (on OS X) and navigate to WindowsSystem32driversetc on Windows and /etc/ on the Mac. Locate a file named hosts and open it with your favorite text editor. Remember that you’re advised to back it up before making any changes.
Add the following line to the hosts file and save it, as shown below:
74.208.105.171 gs.apple.com
Step 4: Launch iTunes, select your device from the program’s sidebar and restore your device to the old firmware you’ve selected earlier. In order to do this, hold the Alt key (if you’re using OS X) or Shift (if you’re on Windows) on your keyboard, press the "Restore" button on iTunes and navigate to the desired firmware file.
Note: You might get a 1013 error during this process, which is entirely normal, throwing your device into recovery mode.
In order to get out of this, download TinyUmbrella (Windows, Mac) or Fix Recovery (Windows,Mac). From either one of them, select "Exit Recovery" to go back to normal mode.
You’re done! You should now be running an old version of iOS! If you have downgraded to iOS 4.3.3, you can simply follow our guide posted here on how to jailbreak (full untethered) iOS 4.3.3 using JailbreakMe 3.0. For iOS 4.3.5, you can follow the steps posted here to tether-jailbreak your device using Redsn0w.