To help you make a smooth upgrade and stay away from all kinds of i Phone i Pad update issues, here in this article we collect the most common i OS 9 problems and solutions. Cellular data issue after i OS upgrade is also extremely common.

After connecting the i Phone to i Tunes on her laptop, she had to restore the phone from a backup to fix the problem.

Anyone who was affected should connect to i Tunes to complete the update or contact Apple Care for help." Initially when clicking on "update," another error window popped up, saying i Tunes would update the i Phone to i OS 9.3.5, the version of Apple's software that came before i OS 10.

In my case, the software update through i Tunes failed.

The good news is that i OS 9 will allow users to temporarily delete apps in order to complete the OS update.

i Messages Failing to Send on i OS 9/9.2/9.2.1/9.3 /9.3.3 13. Even Apple revealed at WWDC that i OS 9 will only be about 1.3GB in size, it can still be a tough task for many 8/16 GB i Phone or i Pad users to free up that much space, especially if they're not syncing to i Tunes to manage storage manually.