Please check: Settings - General - Storage & iCloud Usage - Storage - Manage Storage. Look for "iOS Upgrade" file here. If found, swipe left to delete. Restart the phone then check for update again.
Please check: Settings - General - Storage & iCloud Usage - Storage - Manage Storage. Look for "iOS Upgrade" file here. If found, swipe left to delete. Restart the phone then check for update again.
Why can't I download iOS 10.2.1?