The tool allows users to:

After modifications, the tool will repack the files, re-encrypt the root filesystem ( .dmg ), and create a new, modified .ipsw file.

The interface is straightforward, catering to a user base that likely has a technical background. However, for those new to IPSW modifications, there might be a learning curve.

Older iOS firmwares are fully encrypted. Modern iOS firmwares leave the root filesystem unencrypted but encrypt the bootloaders and kernelcache.

The community around the tool is active, with many users contributing their knowledge and providing support to newcomers.