If you wish to downgrade to iOS 8.4, backup your device first, just in case. Then you'll need to download the software to your computer. Make sure it's the right version, or you won't be able to install it.If Apple is still signing 8.4 .... How does one go about updating to 8.4? I'm using a Mac.
The software is iOS 8.4. You can find download links on various sites, here's one of them:Forgive my ignorance. But you download "The Software" what software? Where I go to get this software?