Download iOS 8.1 (12B411) for iPhone 5s (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 iPhone6,1
iOS Version 8.1
Release Date 2014-10-20
Update Date 2014-10-15
Sha1sum
28853c4cee9c42d8d2787f53a8563d995f833ff8
Sha256sum
7e500dcd740656554e3751ac4527f8ef6ea0fc88a1fa2ce65229df03d192dcd9
md5sum
bad689b9034533fc4b0c2a0e28a1948e
Size 1.94 GB
FileName
iPhone6,1_8.1_12B411_Restore.ipsw
Status

Download IPSW (1.94GB) Check device info
Release Notes

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

This release includes new features, improvements and bug fixes, including:

Some features may not be available for all countries or all areas.

For information on the security content of this update, please visit this website:

http://support.apple.com/kb/HT1222