Download iOS 15.2.1 (19C63) 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 not being Signed by Apple

Firmware Identifier iPhone8,4
iOS Version 15.2.1
Release Date 2022-01-12
Update Date 2022-01-08
Sha1sum
1c0e359e765c9e899bad246268755f5a61de43ed
Sha256sum
5ec386cdd86a0901f6e3f02f8dfd6f382db8708dd462bcfd29bd822f38bced67
md5sum
ed8be5f886367d9ba002021d58ace544
Size 5.03 GB
FileName
iPhone_4.0_64bit_15.2.1_19C63_Restore.ipsw
Status

Download IPSW (5.03GB) Check device info
Release Notes

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

iOS 15.2.1 contains bug fixes for your iPhone including:

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

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