Shulou(Shulou.com)05/31 Report--

If you've upgraded to iOS 12, feel free to stay on it, because Apple doesn't give you a chance to downgrade. In the early morning of Oct. 9, 2018, iOS11.4.1 system version verification was turned off immediately after the iOS12.0.1 official version was launched. This also means that users will not be able to downgrade from iOS 12 to the iOS 11 system.

At present, the only systems on the market for public use are iOS 12 and iOS 12.0.1, while previous statistics show that the update rate of the official version of iOS 12 has exceeded 50%, and many iOS 11 users are already switching to the new system.

Turning off firmware signing this time will not have much impact on the jailbreak community, as the latest jailbreak system supports iOS 11.3.1. However, anyone who is not satisfied with the iOS 12 experience will now be forced to remain calm because there is no way to return to iOS 11.

Apple often turns off firmware signing after a certain number of iOS updates to prevent downgrades. The main reason is to force iPhone and iPad users to upgrade to newer versions of iOS, as they usually contain the latest bug fixes and security bug patches. Many jailbreak tools rely on these so-called security vulnerabilities, which is why people who want to escape are usually advised not to upgrade to the latest system.

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