
In addition, please backup the iPhone in case any unexpected issue because of incorrect operation. Go to “Settings” > “General” > Toggle on the “Software Update” option. How to fix iPhone won’t update to iOS 16/15?īefore we trying to fix this issue, please make sure the “Automatic Updates” option is enabled.

If you encounter this issue, don't worry, just follow the next part, we summarize some solutions and guide you on how to fix this problem in detail. There are various causes making an iPhone unable to update, The most common reasons include weak network conditions, not enough space on iPhone, the iOS package is corrupted, etc. For example, the process just stuck in the middle, or an iPhone fails to download the package, and so on. But sometimes, some users reported that they can't update their iPhone to the latest iOS version. Check Network and battery levelĪdditional content: Protect iPhone data before updating iPhoneĪpple keeps releasing new iOS versions to add more features on iPhone and make iPhone more stable. How to fix iPhone won't update to iOS 16/15 I just receive a check error when I tried to manually update it. Hi, I’m just wondering if anyone can explain why my iPhone 12 can’t update to iOS 15.5.
