How to Jailbreak iOS 5.1

Posted by Mayank on April 24, 2012 in Apple

Wondering why anyone should jailbreak their iPhone, iPad or iPod Touch? Apple does not provide you options to completely personalize your iPhone or iPad or iPod Touch. You can completely personalize your iPad, iPod or iPhone on by jailbreaking it. Need further convincing? Read this — Why Should I Jailbreak My iPad or iPhone.

Please note that jailbreaking is different than unlocking. Jailbreaking refers to liberating your phone from the controls of Apple, so that you can do changes in your iPhone or iPad, which otherwise you won’t be possible to. Jailbreaking allows users to gain root access to the operating system, allowing iOS users to download additional applications, extensions, and themes that are unavailable through the official Apple App Store. A jailbroken iPhone, iPod touch, or iPad running iOS can still use the App Store, iTunes, and other normal functions, such as making telephone calls.

Under the Digital Millennium Copyright Act 2010, jailbreaking iPhones is legal in the United States, although Apple has announced that the practice “can violate the warranty”.

Jailbreaking an iOS device is not as easy any more. With every new iOS upgrade, Apple is covering loopholes, making their software harder to break. However, that has not deterred hackers and nerds from working day and night to jailbreak every single iOS release.

Types of Jailbreak

There exist 2 types of jailbreak options:

  1. An “untethered” jailbreak has the property that if the user turns the device off and back on, the device will start up completely, and it will have a patched kernel — in other words, it will be jailbroken after each reboot.
  2. With a “tethered” jailbreak, if the device starts back up on its own, it will no longer have a patched kernel, and it may get stuck in a partially-started state; in order for it to start completely and with a patched kernel, the user has to start it with the help of the jailbreaking tool.

How to Jailbreak using Redsn0w

1. Download latest version of RedSn0w and run it: Redsn0w for MacWindows.

2. Place your iPhone 4, or iPod touch, etc. into DFU mode. Unaware of DFU mode? Check this – what is DFU mode.

3. Click jailbreak on RedSnow, and it will evaluate the necessary firmware. It will then ask you to install Cydia, make sure that is selected and click next.

4. Your iPhone or iPad should now turn into a screen similar to the Matrix movie – you should see a lot of scrolling text on your device, and eventually you will be back to your Home screen. You will see a Cydia icon but it will be white. That is because you have to perform a tethered boot.

5. Place your iPhone or iPad back in the DFU mode.

6. Click back on redSn0w and select Just boot.This will perform a tethered boot, and once your device returns to its Home screen, you will see a usable Cydia app icon. Open Cydia, and enjoy your jailbreak.

Note: Steps 5 and 6 need to be repeated every time you reboot your device to re-tether jailbreak it.

Recommended Reading

DFU Mode Explained

Why Should I Jailbreak my iPhone or iPad

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