| Esc | Cancel current operation | Space | View original (keep pressed) | ||
| [Ctrl] O | Open image | [Ctrl] S | Save image as JPG | [Ctrl] P | Print image |
| [Ctrl] Z | Undo | [Ctrl] Y | Redo | / | Quick search: find a filter/effect by name |
| SHIFT + | Zoom in | SHIFT - | Zoom out | SHIFT 0 | Zoom to fit |
A sophisticated function of i4Tools is its management of SHSH (Signature HaSH) blobs. Apple utilizes a signing window system to prevent users from downgrading iOS versions, thereby forcing users onto the latest security patches. i4Tools automates the process of saving these blobs and provides an interface for "Prometheus" downgrade tools. This empowers users to revert to iOS versions that may be jailbreak-friendly or have better battery performance, challenging Apple’s timeline for hardware obsolescence.
For advanced users who care about downgrading in the future, i4Tools automatically helps you backup SHSH blobs. This is a technical file required to restore to a specific iOS version later on. i4tools english version
The original i4Tools was developed with a Chinese UI. While functional, the Mandarin interface posed significant challenges for English-speaking technicians and casual users alike. The i4Tools English version is not merely a translated menu; it is a cultural and functional adaptation. A sophisticated function of i4Tools is its management