Legacy tools that automated IPSW modification for older iOS versions (iOS 3 to iOS 6). ⚠️ A Word of Caution
🛠️ Method 1: The Manual Method (For Inspection & Basic Tweaks) modify ipsw file
The modified IPSW needs to be signed with a valid SHSH blob (for A7 and older devices) or using Futurerestore for newer devices, to make it restorable. Legacy tools that automated IPSW modification for older