Download iOS 15.8.4 (19H390) for iPhone SE

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

✅ This IPSW firmware is Signed

Firmware Identifier iPhone8,4
iOS Version 15.8.4
Release Date 2025-03-31
Update Date 2025-03-21
Sha1sum
40cada7f4ca8e1dd9b7fe80d8f9fb6d7550e4f24
Sha256sum
fd314966ec3388527a68bcad56518c0c457956819501ce9aa70f38825078eafb
md5sum
7d6d9cf5ef570cf2ae33719089442b13
Size 4.88 GB
FileName
iPhone_4.0_64bit_15.8.4_19H390_Restore.ipsw
Status

Download IPSW (4.88GB) Check device info
Release Notes

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

This update provides important security fixes and is recommended for all users.

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

https://support.apple.com/HT201222