ساعاتی پیش شرکت اپل امکان ساین عمومی و ریستور کلیه کاربران خود به نسخه ی 13.1.1 را مسدود نمود.

با این وجود کلیه کاربرانی که قصد آپدیت و یا ریستور دستگاهای خود را دارند میتوانند به نسخه 13.1.2 یا 13.2 مهاجرت نمایند.

Apple has stopped signing iOS 13.1.1 preventing users from being able to downgrade or restore to that firmware version.

Currently, Apple's latest firmware is
iOS 13.1.2. If you accidentally update or restore, you'll find yourself on iOS 13.1.2. Developers have been seeded with iOS 13.2.

Those interested in jailbreaking are typically advised to stay on the lowest firmware possible. A recent
unpatchable bootrom exploit has been released for the iPhone 4S through iPhone X that could lead to a jailbreak of any firmware version for those devices.