Tag Archives: jailbreak how to

How to downgrade iPhone OS to version 5.0.1

How to downgrade iPhone OS to version 5.0.1

Apple freezes the digital signatures of iOS 5.0.1
As usual, Apple has done so after a few days to capture digital signatures necessary to install the penultimate mobile operating system. This implies of course that is no longer possible to install the 5.0.1 firmware in the traditional manner, i.e. through the normal recovery process in iTunes.
How to downgrade iPhone OS to version 5.0.1
So, if you need to restore iOS 5.0.1, you need the certificates SHSH of your device for that version. Following our guide, you can still have iPhone OS 5.0.1 on your device even though Apple has locked digital signatures. However, we would like to point out that the recovery method using the SHSH blob can be run only on Apple devices with the previous chip A5. So, owners of iPhone 4S and iPad 2 with iOS 5.0.1 can no longer recover even if they saved the SHSH.

How to downgrade iPhone OS to version 5.0.1
The new version of the mobile operating system has already been jailbroken, albeit tethered and only for some devices (which do not include the iPhone 4S and iPad 2). However, if you are interested in the jailbreak, the best choice right now is to stay with iOS 5.0.1. If you have already installed the latest version, here is how to downgrade it.

Apple has not yet locked the keys to sign the firmware 5.0.1, so there is no need to have previously saved the certificate SHSH your device on the penultimate version. As soon as such keys are removed, you cannot restore iOS 5.0.1 using traditional methods developed by Apple. The only alternative, therefore, remains the one that uses the SHSH blob.

The downgrade of the method allows restoring iOS 5.0.1 only if, when you had that version of the operating system on your device, you have done to save the certificate SHSH. However, the method described here cannot be applied to iPhone 4S or iPad 2 because, although you have the SHSH blob in your hands, there is still no way to use it in the process of installing the firmware.

To downgrade using certificates SHSH you need iFaith (the links for download are listed at end of article) and the iOS 5.0.1 firmware on your device formed IPSW, available from our download page. Do the following:

  • Open iFaith and choose the “Build IPSW*signed w/Blobs”
  • Look for the path on your computer where you saved the certificate SHSH of iOS 5.0.1. Select the file also IPSW you downloaded
  • iFaith will kick off the automatic procedure, after which you will create the custom firmware
  • Set your device into DFU mode by following closely the steps shown by iFaith
  • Open iTunes and hold down SHIFT, click on Restore. Select the custom firmware created by iFaith and wait until the processing is completed.
Multitasking

Jailbreaking: SwitchCleaner for iOS 5 helps to clean the area Multitasking

For those who dabble with the operations of the jailbreak on the iPhone, we present an application installed on iOS5 devices that allows you to clear the memory from running applications that do not wish to remain running in the background taking up resources. The name of this app is SwitchCleaner and you will find in Cydia repository.

The developer r_plus has released this tool, can be used only on iOS 5 devices and provides the user with two improvements for the management of multi-tasking. Natively, when you entered this area, are visible only to applications running in that moment: in this way, the user must press and hold on an icon to enter the editing mode, which turns the familiar red button “delete” to allow the removal of the application from the bar switch. Using SwitchCleaner we will not need to follow all these steps, since the app to change the behavior of the iPhone OS 5 operating system, making it unnecessary user interaction.

 
Multitasking
 

The small change in one variable can make sure that when a user enters the area of multitasking, the red button to remove the app running is immediately visible! Just one touch to complete the removal operation without additional touch or expectations. SwitchCleaner was distributed by its creator as an open source project and is downloadable for free for all devices that are based on iOS 5.

 

To use SwitchCleaner is obviously essential that the device is already unlocked. To do this, you should do a little research in our blog to look exactly the model you have and find the most effective tactic to get direct access to the mobile operating system from Apple, without risking damage to your iPhone, iPod or iPad Touch. Also, when you decide to install applications that come from this environment, you must ensure that we can trust the various development groups in order to avoid unpleasant surprises.