Don't brick your iPhone, iPad, Mac, or Apple Watch by installing developer betasAs a reminder: You shouldn't install developer betas on your primary devices if you want them to work.
This is our yearly reminder, folks: Unless you're a developer with a secondary iPhone or Mac, we strongly, strongly urge you to consider not installing developer betas on your devices.
It's not because we don't want you to have fun: iOS 11, watchOS, tvOS, and macOS High Sierra have some phenomenal features coming this Fall. But they're beta seeds for a reason: These features are not fully baked, may crash at will, and probably will slow down or crash your third-party applications.
If you're a developer, researcher, or otherwise need the beta on a device for day one, please back up the phone, tablet, or Mac first; preferably, that device should be an auxiliary model you have lying around. (Older iPhone and iPads make great test devices.)
In short: Be smart. The public beta period for iOS 11 and macOS High Sierra is coming later in June, and that seed will likely be much more stab...
Source:
Don't brick your iPhone, iPad, Mac, or Apple Watch by installing developer betas
