iOS 17.2.1 (21C66) for iPhone 12 Pro Max

✗ This firmware is not signed. This means you cannot restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore.

Release DateDecember 19, 2023
Upload DateDecember 16, 2023
FilenameiPhone13,4_17.2.1_21C66_Restore.ipsw
Filesize7.2 GiB
SHA256sume54c05c5a383ba9845713b057117e56d576fca3601d892f1f36ef635b050731e
MD5sumaccd4718bc2111e9a0cd9d5b86cb0c03
SHA1sum2a31d3bbab2031bcd7b0cd6620b8874bf0e3d2cf
IdentifieriPhone13,4

iOS 17.2.1 Release Notes

Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

This update provides important bug fixes and is recommended for all users.

For information on the security content of Apple software updates, please visit this website:

https://support.apple.com/kb/HT201222

Bluesky Mastodon r/jailbreak Twitter