In addition to i Tunes, another option for backing up from Apple is also available - i Cloud.
The ultimate goal of jailbeaking your i OS device is to be able to able to access and download apps that are not available in Apple store.
Apple is underway in designing a rootless security system that will deny user from performing malware activities thus preventing jailbreak of i OS device.
This security system known as Rootless; is purposefully designed to protect your data from being damaged by malicious person.
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With the great anxiety of upgrading to the latest released i OS 9, you should put in mind that not all devices could be upgraded to i OS 9.
Ideally if your device is running i OS 8 then it can upgrade to i OS 9. Backup to i Cloud As mentioned earlier to be able to back your files you to i Cloud ensure you are connected to a wireless network. After it backed up either to i Tunes or i Cloud you can now kick start the process of upgrading from i OS 8 to ultimate i OS 9. Upgrading a jailbroken device is easy provided you have done a back up of data on i Tunes or i Cloud.
SHSH blobs are in the process of being phased out in favour of the tougher-to-beat APTicket.
Important: For this reason, you shouldn’t upgrade the software on your phone or restoring to stock if you depend on your jailbreak for an unlock.