Review

New IPSW app by Hyperixa lets jailbreakers learn which firmware is signed for their device

One thing jailbreakers and jailbreak hopefuls must pay close attention to is their handset’s firmware. Apple intently unsigns older versions of iOS and iPadOS to prevent users from downgrading to them from newer versions — an effort that makes jailbreaking more difficult as Apple pushes software updates frequently to patch the bugs and exploits used by jailbreak tools.