Click on i Tunes in the menu bar and then click on “Check for Updates..”.
Once i Tunes is all squared away, it’s time to turn your attention to your i OS device and follow these instructions: Step 1: Connect your i OS device to your computer using an USB cable.
You’ll also need to reactivate your device, and go back through the normal setup process.
The first thing to try is to double tap the Home button and swipe up on any problem app that’s listed to close it.
Now restart your device by holding down the Home button and the Sleep/Wake button until you see the Apple logo.2.
Normally, if you wanted to perform a full system restore, you’d be forced to upgrade to the latest firmware, and thus lose your jailbreak.
With Cydia Impacter, you can restore your device to stock Cydia Impactor version 0.9.15 is currently in beta for i OS 8.3 and i OS 8.4 only.
Tai G provides an i OS 8.4 and 8.3 untethered jailbreak.