How to Jailbreak iOS 4.3.5 on iPhone / iPad / iPod Touch with RedSn0w 0.9.8 beta 4 ( Windows and Mac Tutorial )


28.07.2011

How to Jailbreak iOS 4.3.5 on iPhone / iPad / iPod Touch with RedSn0w 0.9.8 beta 4 ( Windows and Mac Tutorial )

Apple released iOS 4.3.5 on iTunes, and this new firmware versions doesn’t bring anything new for the iDevice users. This new iOS version comes only one and a half week after iOS 4.3.4 was launched, the firmware that was not blocking the users to jailbreak their devices using jailbreakme.com 3.0.

The only new thing about iOS 4.3.5 is that a security problem with certificate validation was fixed, so in my opinion I see no reason why you should upgrade your iDevice to it.

Even though iOS 4.3.5 is an update that brings nothing important for the iDevice owners, some of them upgraded their devices and now they want a jailbreak solution. As I mentioned above the only thing Apple fixed in the new firmware version was a certificate validation vulnerability and nothing more.

The good news is that the baseband for iPhone 4 remained unchanged in iOS 4.3.5, so you can still use the Gevey 3G SIM cards and of course, you can still jailbreak your iPhone, iPad, iPod Touch using RedSn0w 0.9.8 beta 4.

But if you own an iPad 2 tablet, please DO NOT update it to iOS 4.3.5, as you won’t be able to downgrade it to iOS 4.3.x once Apple closes the certificate validation for iOS 4.3.4. If you somehow updated your iPad 2 to iOS 4.3.5 then we recommend you to download this version of TinyUmbrella and if you have the iOS 4.3.x SHSH then downgrade your device.

One of the big problems of TinyUmbrella was that you couldn’t get the iPad 2 tablet out of Recovery mode if you downgraded the firmware. Several months ago it was rumored that you will need to exploit the bootrom in order to fix this problem, but it seems that the developers of TinyUmbrella managed to find a way around this issue without a bootrom exploit.

Now using TinyUbmrella the iPad 2 users are able to restore their devices to any iOS 4.3.x version if they previously saved the SHSH, and the Recovery Mode will be automatically disabled.

Restoring your iPad 2 tablet that jammed into Recovery Mode is possible only as long as Apple is still signing the SHSH for iOS 4.3.4, that is until the fall, when iOS 5 will be officially launched. Meanwhile don’t forget that you can restore your device to any version prior to iOS 4.3.5 only if you have a SHSH saved to your computer or in Cydia.

Now that you know that you won’t be able to jailbreak your iPad 2 using the below tutorial, you should learn that RedSn0w 0.9.8 beta 4 will jailbreak your iDevice using the bootrom limera1n exploit and it’s compatible with:

  • iPhone 3GS

  • iPhone 4

  • iPad 1;

  • iPod Touch 3G;

  • iPod Touch 4F.

We recommend you to closely follow each step of the below procedure or else you might end up bricking your device. Anyway, GeekSailor should not be held responsible in any way if you end up bricking your device after following the below tutorial. Let’s see now what steps you will need to follow in order to safely jailbreak your iPhone / iPad / iPod Touch running on iOS 4.3.5 using RedSn0w 0.9.8b4:
  1. First up you will need to download RedSn0w 0.9.8 beta 4, which you can grab from the below links:

    • Download RedSnow 0.9.8 beta 4 for Windows here

    • Download RedSnow 0.9.8 beta 4 for Mac OS X here

  2. Then you will need iOS 4.3.4 for your iDevice model. RedSn0w dose not support the IPSW for iOS 4.3.5, so you will still have to use iOS 4.3.4. Here are the download links, for your iDevice:

    • Download iOS 4.3.4 for iPhone 3GS here.

    • Download iOS 4.3.4 for iPhone 4 here.

    • Download iOS 4.3.4 for iPad 1 here.

    • Download iOS 4.3.4 for iPod Touch 3G here.

    • Download iOS 4.3.4 for iPod Touch 4G here.

  3. Now connect your iPhone / iPad / iPod touch to the computer using the data cable, then open RedSn0w 0.9.8 beta 4 (if your computer is running on Windows 7, we recommend you to use RedSn0w in compatibility mode with Windows XP). Press the “Browse” button in RedSn0w, navigate and locate the iOS 4.3.4 IPSW, select it and then click on the “Next” button. At this point RedSn0w will implement the exploit and will move on the the next step.

  4. In the new RedSn0w window you should be able to choose from five options. Tick the one called “Install Cydia” and click on the “Next” button.

  5. Next up you will have to get your iPhone / iPad / iPod Touch in DFU Mode. First turn off your device, then click on the “Next” button and RedSn0w will show you how to get your device in DFU Mode.

    • Press and hold the “Power” button for about 3 seconds

    • Then press the “Home” button for about 10 seconds without releasing the “Power” button

    • After the 10 seconds have passed, release the “Power” button and your iDevice should get into DFU Mode and RedSn0w will start implementing the exploit.

  6. If everything goes as planned and your device was jailbroken, then RedSn0w should display the “Finish” button.

  7. Unfortunately the “fun” doesn’t stop here. You performed a jailbreak for iPhone / iPad / iPod Touch but the applications won’t run because you have a tethered jailbreak. Now you will need to follow the below instructions in order to boot your device in tethered mode so you can use Cydia, Safari and other applications.

  8. Get your iDevice back in DFU Mode by following the instructions at Step 5.

  9. Now open RedSn0w again, click on the “Browse” button and select the iOS 4.3.4 IPSW, select the “Just boot tethered now” option, then click on the “Next” button.

After your device will reboot you should be able to access all the applications without any problems. You will need to perform the last two steps each time your iDevice resets, or else it won’t boot at all. This iOS 4.3.5 jailbreak solution is temporary, so if don’t want to bother doing a tethered jailbreak you can still wait.

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