iOS 17.5.1 (21F90) for iPhone 15

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

Release DateMay 20, 2024
Upload DateMay 17, 2024
FilenameiPhone15,4_17.5.1_21F90_Restore.ipsw
Filesize7.5 GiB
SHA256sumeaa1d9f7da8df40a2b1cf1394abd38cdbcd709fb854aea2f4a0a867e3d770f2b
MD5sum9190b62b420b78cb7b0023079f796b55
SHA1sumb8b9b53e56b81056d7edbfacbb279a613daa9db3
IdentifieriPhone15,4

iOS 17.5.1 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 addresses a rare issue where photos that experienced database corruption could reappear in the Photos library even if they were deleted.

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