iOS Update Failed
Apple iOS
Severity:What Does This Error Mean?
iOS update failed is most often caused by not enough free storage space or an interrupted download. Free up at least 2 GB of storage, delete the partial update file in Settings > General > iPhone Storage, then re-download.
Affected Models
- iPhone 15 series
- iPhone 14 series
- iPhone 13 series
- iPhone 12 series
- iPad Pro
- iPad Air
- iPad mini
Common Causes
- Not enough free storage — iOS updates need 1-4 GB of space
- Download was interrupted by a Wi-Fi drop
- Apple update servers overloaded (common just after a new release)
- iPhone battery below 50% — iOS requires charge before updating
- Corrupted partial download file