If you own an iPad, iPod touch or iPhone that runs on iOS 8.4.1 and you want to downgrade it to iOS 8.4, you’ve come to the right place, because today we’re going to tell you all you will need to know about this. Keep in mind that this will only work as long as Apple still sign the iOS 8.4 firmware. As soon as Apple will decides to close the “signing” window, you will no longer be able to downgrade from iOS 8.4.1 to iOS 8.4.
Before you start the downgrade process, you should know that making a full device backup using iTunes or iCloud, will not help you too much. These backups will not be compatible for restoring your device in iOS 8.4. In other words, you will need to manually backup and sync data with your iCloud account or save it locally on your personal computer before downgrading it back to the older firmware.
Downgrading iOS 8.4.1 to iOS 8.4
First of all, you will need to download the iOS 8.4 firmware file from the internet. Do a simple Google search and download it to your computer. After that, you will need to make sure that you have the latest iTunes installed on your computer or Mac.
After you make sure that you have the iOS 8.4 firmware and the latest iTunes version installed on your computer, you will need to turn off the Touch ID/Passcode from your iPhone, iPad or iPod Touch’s Settings->Touch ID & Passcode. Then, turn off the “Find my iPhone” feature from Settings->iCloud->Find My iPhone.
Now, connect your iOS device to your computer using an USB cable, launch the iTunes application and select your iOS device from the Summary tab, under the Settings (in the left sidebar column). Now, hold down the Alt/Option key on your Mac’s keyboard or the left Shift key if you are using Windows and click on the “Restore iPhone” button.
When you are asked to select the firmware file, select the iOS 8.4 file that you’ve downloaded from the internet.
Now, the downgrade to iOS 8.4 will start and you will just need to wait for the mobile device to complete the operation. Keep in mind that this can take a while and once it’s done, your iPad, iPod touch or iPhone will automatically reboot.