While iOS 14 ranks among the more stable initial releases from Apple, there will always be some problems with beta software. Since iOS 14 continues to be under development, issues such as crashing, shorter battery life, and apps breaking can happen. If you have installed the developer or public beta version of iOS 14 and wish to downgrade to iOS 13, the iPhone can be restored to a backup or iOS 13 factory settings.
When Apple stops signing iOS 13, downgrading from iOS 14 using the steps below will not work. In the meantime, iOS 14 beta can be uninstalled from your device.