A firmware is an IPSW file that contains everything needed to run the core operating system, iOS. Beta firmwares have also been released, but require an Apple Developer account to acquire. To check for updates, iTunes contacts itunes.apple.com.
Firmware List (by device)[edit source]
See Also[edit source]
- Beta Firmware
- Firmware Keys
- OTA Updates
- Beta OTA Updates
- RecoveryOSUpdates
- Rapid Security Responses
- Beta Rapid Security Responses
- Jailbreak
- SHSH
- VFDecrypt