The common term for modifying an i Phone is jail-breaking, with a particular emphasis on the second part of that term.That’s why we strongly, almost emphatically, recommend that you do not do so. Should you be unable to use your i Phone due to an unauthorized software modification, its repair will not be covered under the warranty.“ While this text isn't included in the current i Phone warranty in the UK, we generally think Apple Store employees take a dim view of fixing jailbroken phones.In case you have an i Pad, i Pod Touch, or i Phone that is jailbroken, you may have a tough time updating to i OS 9 via the OTA update.Chances are that when you try to get the OTA update, the screen will just be stuck at the Checking for Update section.
Be aware that you will lose access to the Cydia Store and all of your jailbroken software.
Image : Install i OS 9 on Jailbroken i Phone Well this is not surprising and is expected in case of jailbroken devices, as most of the modern jailbreaks like Tai G do not work well with OTA updates.
Also, these jailbreaks actually disable OTA updates so that the device does not accidentally update itself to the next i OS firmware, thus saving the jailbreak.
There are lots of reasons to consider removing jailbreak software from an i Phone.
You might want to upgrade, you might not find jailbreaking all it's cracked up to be, and you might want the extra security that comes from having a non-jailbreak version of i OS on your i Phone.
i OS 7 brings a major overhaul to Apple’s mobile operating system and as such, installing it on the i Phone requires a major upgrade.