: Offers a categorized list of direct download links for every iOS version ever released, along with a "wizard" to help identify your device.
: Hold the Shift key and click the Restore iPhone (or Update) button. Download iOS firmwares
: A file browser will open; select the .ipsw file you downloaded. : Offers a categorized list of direct download
: A comprehensive database that lists firmware for virtually every Apple device, including niche versions and detailed build numbers. Download iOS firmwares
: The most popular third-party repository. It provides a clean interface to select your device type (iPhone, iPad, etc.) and specific model to find both currently "signed" (authorized by Apple for installation) and "unsigned" (archival only) firmware versions.