Why Can'T I Downgrade My Iphone?
Apple has a policy that you cannot downgrade your iPhone. This is because Apple wants to make sure that the device is as secure as possible and that any changes that you make to it are permanent. New Software Must Be “Actively Signed” By Apple To install software on the iPhone or iPad, software must be signed by Apple. This means that other operating systems like Android or Linux cannot be installed on Apple smartphones or tablets, only Apple-approved software....