The process involves directly obtaining and installing Apple’s operating system update for iPhones and iPads, bypassing the automatic update feature found within the device’s settings. As an example, individuals might utilize a computer and iTunes (or Finder on macOS Catalina and later) to install the update file (.ipsw) directly onto their device, instead of allowing the device to download and install the update over Wi-Fi.
Circumventing the over-the-air update mechanism can offer advantages in specific scenarios. It provides greater control over the timing and method of installation, potentially mitigating issues related to limited storage space on the device or unreliable network connectivity. Historically, this method was commonly used to restore devices to a previous version of the operating system or to install beta versions for testing purposes. It allows users a direct means of upgrading to the latest software without relying on Apple’s automated delivery system.
