Download iOS 15.5 (19F77) 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 15.5
Release Date 2022-05-16
Update Date 2022-05-11
Sha1sum
1c57dae65f5bbd9f6e1dbd484321584b3459953c
Sha256sum
5707feca3ea96c7732c220ea6e0cb4bfb6355d0686fbde4d7c274ae70c52c031
md5sum
7860754ee9a9bcdbeff2de43aa1b3412
Size 5.41 GB
FileName
iPhone_5.5_P3_15.5_19F77_Restore.ipsw
Status

Download IPSW (5.41GB) Check device info
Release Notes

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

iOS 15.5 includes the following improvements and bug fixes:

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