4s To Ios 5 - Downgrade Iphone

The official iOS 5.1.1 IPSW for the iPhone 4s, which you can download from sites like IPSW.me . Method 1: Legacy iOS Kit (Recommended)

The tool will automatically download the correct, official IPSW firmware file directly from Apple's servers and patch it with the necessary exploits. Step 4: Flash the Firmware downgrade iphone 4s to ios 5

Be realistic:

Apple uses a cryptographic handshake. When you restore, iTunes asks Apple’s server: “Is iOS 5 allowed?” The server replies: “No, stop.” The official iOS 5