: If a previous update failed or important system files are corrupted, the device enters a "recovery" state where only a computer can reinstall the operating system.
: If your device doesn't have enough space to download and unpack a large update, it may require a computer to handle the heavy lifting. : If a previous update failed or important
While modern iOS devices usually update "over-the-air" (OTA) via Wi-Fi, certain conditions force a manual update through a Mac or PC. : If a previous update failed or important