As with i Tunes backups, i Cloud will not back up your unofficial apps or other jailbreak tweaks, but it will successfully back up all your App Store apps and data.
Using i Cloud will not cause your phone to lose its jailbreak.
Updating your i Phone to a new i OS version will also remove your jailbreak.
Because i Tunes and i Cloud backups do not save jailbreak app data, you may want to use an additional backup program to save this information.
Though Apple does not support the process, jailbreaking your phone will not prevent you from backing up or syncing with i Tunes, nor will doing so remove the jailbreak.
Let’s dive in to see some more details on the matter.Several programs available from Cydia can save information about your installed Cydia packages for later restoration.You can also use an SSH connection from your computer to manually copy data off your phone.Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.Visit Stack Exchange " will reset the phone, but will not "un-jailbreak" the phone.