iOS 17.3.1 (21D61) for iPhone 15

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

Release DateFebruary 8, 2024
Upload DateFebruary 5, 2024
FilenameiPhone15,4_17.3.1_21D61_Restore.ipsw
Filesize7.4 GiB
SHA256sum6220c321a50777ac071e0bf1fef138017c5ab24d24973178e32d823756ede3f5
MD5sume46e657d5a104e179ad7b330880a8386
SHA1sumc1345d505d034f470fa05fcc8026a4d58dd8b63c
IdentifieriPhone15,4
Download (7.4 GiB)

iOS 17.3.1 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 bug fixes for your iPhone including:

  • Text may unexpectedly duplicate or overlap while typing

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