Download iOS 15.2.1 (19C63) 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 15.2.1
Release Date 2022-01-12
Update Date 2022-01-08
Sha1sum
9a9202494745888af11b9d785742d8bd572f7f6f
Sha256sum
22ea6570ea1c24cb76ace6b3e739d9ffbf79373f9613f0a2c248ed744ce9d87a
md5sum
49b7d8a0ca4b5991f8e449f1408e5419
Size 5.57 GB
FileName
iPhone_5.5_P3_15.2.1_19C63_Restore.ipsw
Status

Download IPSW (5.57GB) 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