Hi, please help.. I have ios9.01, jailbroken with the recent Pangu app, on my iphone 6 plus.. I have many apps and jailbreak tweaks installed. Now my phone has becomes somewhat buggy. I am too lazy to check which tweaks causing problem to my phone.. I am thinking of resetting the phone and do a clean jailbreak again.. However I still wish to restore the phone to my most recent backup on itunes.. I've got too many files, messages and photos in my phone.. My question is, when I restore my phone, must I also upgrade to ios 9.1? Can I still proceed with the restore without upgrading to 9.1? Thank you very much..