Hey OP, in post #4 you say it is "perfect" but in post 18 it is not. What changed between the two posts?
Post #30 states the saved footage is amazing but the displayed image is not. Sounds like either:
• A bad cable. Use a quality USB data cable from the center USB port. Make sure there is no cable plugged into the side of the RC.
• An over taxed iPhone. Turn off all other apps, free up RAM, and fly in airplane mode.
• A Go 4 update. Sometimes a Go 4 update will introduce new features or functions that your iPhone is not capable of running. You could try downgrading Go 4 to a version that works for you.
• Outdated OS. You are updating so this might fix your problem. In all the posts I have read on this forum, I can only recall one that involved an iUpdate that hosed Go 4. Then again, I use an Android tablet so am not up to date on any issues the iOS folks may be experiencing.