Download iOS 13.6.1 (17G80) 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 13.6.1
Release Date 2020-08-12
Update Date 2024-06-03
Sha1sum
775642f27dcd78e814ecfbc1f475d88a1b3a71f0
Sha256sum
645ab0bd557c9c192d43e3fb9c5e0a5a023241ba796aa0942224defaf76b48c2
md5sum
92df760ea974a57d40be72daab145044
Size 3.99 GB
FileName
iPhone_5.5_P3_13.6.1_17G80_Restore.ipsw
Status

Download IPSW (3.99GB) Check device info
Release Notes

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

iOS 13.6.1 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