To safely and legitimately use any iOS beta firmware on the developer cycle, your device must be enrolled as a development device with Apple. As Apple warns, installing beta software on your device without registration "could put your device in an unusable state and necessitate an out of warranty repair."
Certificate & Provisioning
With these files, you can use iOS App Signer or Xcode to sign and install any app on your device, no jailbreak required. Certificate and provisioning files are provided to our Silver, Gold, and Platinum customers.
Registrations can be delayed due to high demand or system downtime on Apple's servers. In the event of a wait list, customers who purchased the Gold or Platinum packages will be processed first.
Protect yourself from the unexpected. If you purchase the Gold or Platinum package and your device is exchanged under an insurance program such as AppleCare or replaced due to theft within 6 months of your purchase, we'll enroll your new device free of charge.
Apple can choose to revoke device enrollments at any time. If Apple blocks your device from further enrollment in the Apple Developer Program, Gold and Platinum members can continue to sign and install apps with online code signing services or register a different device, free of charge.
Unlock the full functionality of your apps. Gold and Platinum members have exclusive access to provisioning files with an explicit app identifier and distribution certificates to support additional entitlements.
Online Code Signing
Platinum members can use their registration with popular code signing services like IPA Signer, iOS App Signer, and Signulous. You don't need access to a Mac or any computer at all.