: It supports creating and restoring custom firmware that can include jailbreak options , verbose boot, and "hacktivation" (activating a phone without a valid SIM card).
Documentation and updates for the tool are actively maintained on the Legacy-iOS-Kit Wiki . powdersn0w
If you need a (full LaTeX format, references, diagrams) based on the above, I can generate that for you. Just let me know. : It supports creating and restoring custom firmware