Alternatives For Updating In case there is not ample space, plug your iPhone into your PC. Launch the iTunes app and click Update tab on the phone. Make sure the entire process occurs while the iPhone is plugged into the computer. In case there are issues with downloading the update, then perform a factory reset function and then update to iOS 8.4. The Bugs Gone The iPhone update for the iOS 8 is laced with fixes for bugs that messed up messaging function as well as another that caused frequent crashes on the iPad while using messaging apps. Read More: Lumia 940 XL And Lumia 940 New Possible Features: May Come With Sassy Camera And Powerful Processor Samsung Galaxy Note 5 Leaked Specs: May Come With Foldbale Screen And Auto S-Pen eject