These important files contain the essential information of our iOS operating system, on any Apple devices. Consequently, we are not allowed to install IPSW files that are not signed by themselves, this is for security reasons. So, how can we know what versions of IOS that are signed by Apple are?
Here we leave all the necessary information to find out!
A simpler method
How to tell our version
- First you need to access the settings.
- Once inside, we'll General.
- On this screen click on Information.