Download iOS 15.4 (19E241) for iPhone 8 Plus (GSM)

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 iPhone10,5
iOS Version 15.4
Release Date 2022-03-14
Update Date 2022-03-01
Sha1sum
444d9cc01d29d64850fa3e2070fb956e86e530f5
Sha256sum
cf541d4fd2f42e7c9a11c5c0b907fb821c43a48694faf3f8e29e396e4d889e60
md5sum
0f1c4621cf6862c6375c70b351d4a4fc
Size 5.39 GB
FileName
iPhone_5.5_P3_15.4_19E241_Restore.ipsw
Status

Download IPSW (5.39GB) Check device info
Release Notes

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

Face ID

Emoji

FaceTime

Siri

Vaccine cards

This release also includes the following enhancements for your iPhone:

This release also includes bug fixes for your iPhone:

Some features may not be available for all regions or on all Apple devices. For information on the security content of Apple software updates, please visit this website: https://support.apple.com/kb/HT201222