You cannot on real hardware; Apple stops signing old OSes and there’s nothing you can do. Even recent jailbreaks haven’t gotten around this. You can extend the

You cannot on real hardware; Apple stops signing old OSes and there’s nothing you can do. Even recent jailbreaks haven’t gotten around this. You can extend the signing period a bit by using delayOTA https://dhinakg.github.io/delayed-otas.html https://dhinakg.github.io/delayed-otas.html