Download iOS 15.4.1 (19E258) for iPhone 11 Pro

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 iPhone12,3
iOS Version 15.4.1
Release Date 2022-03-31
Update Date 2024-06-03
Sha1sum
29766c5188d51a4d7cb1c517e68315500bddce44
Sha256sum
72dc51e069c2fd1447f25dfefe70621a13fbdb4518c2e665bf42b2ead64571ee
md5sum
fc75936a0090f2670f1b3819fcdb2b99
Size 6.75 GB
FileName
iPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.4.1_19E258_Restore.ipsw
Status

Download IPSW (6.75GB) Check device info
Release Notes

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

This update includes the following bug fixes for your iPhone:

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

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