Modify - Ipsw File

Use IPSW editor software to rebuild the IPSW file. This will re-compress the modified files into a single IPSW package.

Understanding and Modifying IPSW Files: A Guide to Custom Firmware modify ipsw file

Since iOS uses HFS+ or APFS file systems, you need software that can read and write these formats if you are on Windows. Use IPSW editor software to rebuild the IPSW file

A Mac running macOS or a PC running a Linux distribution (e.g., Ubuntu). modify ipsw file