Updating iPhone

Nanaawuku Said:

"Updating iPhone : My iPhone went off while updating using iTunes but in unknown error (1) occurred in the process. Now the screen came back on with just the apple logo and still loading. Is that a cause for worry"

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The worry is that you need to install this. So, try it once more (but, this time, use a computer): Go Here: Update your iPhone Using a Computer - User Tip

Also, Refer to these Two Sites:

• If your iPhone is Stuck on the Apple Logo - Apple Support

• If your iPhone, iPad, or iPod touch won't Turn on or is Frozen - Apple Support

If it completes the update, you should be OK. Otherwise see this article (for error code 1):

iOS update and restore errors - Apple Support