How to downgrade from iOS 10 beta to iOS 9.3.2

If you have upgraded to iOS 10 beta on iPhone, iPad or iPod touch and want to downgrade back to iOS 9.3.2, follow these simple steps to do so.

Before upgrading to the beta version of iOS 10, it is recommended that you back up your device using either iCloud or iTunes. In case you had not backed up your iPhone or iPad, you would have to set it up from scratch after restoring it.

Downgrade from iOS 10 beta to iOS 9:

1. Ensure that your iOS device is sufficiently charged. It is better to keep it plugged in throughout this process.
2. At the time of writing, the latest public build of iOS 9 is 9.3.2, while iOS 9.3.3 is in beta. Depending on when you are reading this, you will have to download the correct firmware for your iOS device. A good place to download firmware is this website. The IPSW files are directly downloaded from Apple’s servers so you do not have to worry about them being tampered or anything.
3. Once you have downloaded the firmware file, connect your iOS device to your computer and launch iTunes. You should see the ‘Restore iPhone’ button. While holding the option key (on Mac) or shift key (on Windows) click this button and point it to the firmware (IPSW) file that you downloaded.
4. iTunes will ask you if you want to backup your device before restore. Skip this step as you can’t restore from a higher version number firmware to a lower version number. In the next message, click the restore button.
5. The restore will take a while. Let it finish. After that, you have two choices: if you want to restore from an iTunes-based backup, continue doing so as iTunes tells you to. In case your iOS 9 based backup is in Cloud, use your iOS device to restore. Tip: in case you only see iOS 10 based recent backups, scroll down in that screen on your iPhone or iPad to see your most recent iOS 9 compatible version.

The backup will make take a long time to restore. It will download all your iCloud based data and apps. You would have to log in to most of your apps and accounts again but apart from that, everything should restore to the same state as you had left it in iOS 9.