Download iOS 15.4.1 (19E258) for iPhone 13

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 iPhone14,5
iOS Version 15.4.1
Release Date 2022-03-31
Update Date 2022-03-28
Sha1sum
47b4a530f9f9ccc1f5dbefa4e9b59936c69ee41e
Sha256sum
d4f494ebbcda95a5e34b932b0effc5c8b001a981a706ee811f588d2aa495590a
md5sum
04d1b218c37a8c7ea17b5c76b16a27d9
Size 6.03 GB
FileName
iPhone14,5_15.4.1_19E258_Restore.ipsw
Status

Download IPSW (6.03GB) 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