hello, i had a jailbroken ios 9.3 iphone 6 16gb and i wanted to update to ios 10.3 due to no storage left to do anything, so I restored my iphone through itunes and after i did there was still 4gb of other data, that wasnt removed, i restored my iphone again to make sure, but no change, i even tried wiping all data through settings, same results... and as you know there is no jailbreak yet for ios 10.3 so i cant access root, what can I do? please help.