my iphone could not be updated. An unknown error occurred
my iphone could not be updated. An unknown error occurred
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What iPhone model? what iOS version is currently running on it?
How are you trying to update it, wirelessly or via computer?
Should be the former, see this support article:--> If your iPhone, iPad or iPod touch won’t update
If you get no help, try to update it using a computer running iTunes (PC) or iTunes/Finder (Mac).
If the issue persists, contact Apple Support using this link:--> Get Support
Regards
Giulio