iOS 8.1.2 Build 12B440 for iPhone 4S [9 Dec 2014] [Official WebSeed]

Device: iPhone 4S (iPhone4,1)
Version: 8.1.2
BuildID: 12B440
Release Date: 12/9/2014
Upload Date: 12/5/2014
Filesize: 1.45 GiB
MD5sum: 39341750faab88b272fdfb7ac0316597
SHA1sum: 53fa0cf99b772736630555b00d6d0f92494a09d9


For missing links/hash etc..
Visit https://ipsw.me

Apple iOS 8 official firmware download

Step 1: Open iTunes

Step 2: Hold option or Alt key and choose update

Step 3: Choose .ipsw file which is already downloaded.

Install the latest version of iTunes on your PC. Launch it and connect your device with PC. Make a backup and then keep pressed the ALT key on Mac or SHIFT key on Windows and click on “RESTORE iPhone….” button. A new window will appear to select the download iOS file. Navigate to the place where you have saved the iOS 8.x restore.ipsw file

The remaining process is simple and mostly automatic. iTunes will restore the iOS and your phone will restart after successful operation.



Check wikipedia for changelog