Download iOS 17.4.1 (21E236) for iPhone 15

You will have to note that you can only restore signed IPSW firmware files using iTunes or 3utools.

❌ This IPSW firmware is not being Signed by Apple

Firmware Identifier iPhone15,4
iOS Version 17.4.1
Release Date 2024-03-21
Update Date 2024-03-17
Sha1sum
232a1278ec1098fdd0a3820bfd77372338d08a18
Sha256sum
17224aed4008a4d4b0467f16861ac3db9ab1b94d10c408960b5f5501511d5efd
md5sum
e254049f23a796a4fd4ebccb0878f621
Size 7.48 GB
FileName
iPhone15,4_17.4.1_21E236_Restore.ipsw
Status

Download IPSW (7.48GB) Check device info
Release Notes

It should be noted that these are the official release notes for the from Apple

This update provides important bug fixes and security updates 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