On Monday Apple released the third beta build of iOS 10. If you do not have a developer profile, but you want to try the latest version of the system, there are several ways to do it.
First, the legal way. Open site beta.apple.com and register your Apple ID to get access to the iOS public beta 10. This will allow you to participate in a public testing of the operating system. The disadvantage of this methods is that the public beta come out late in a few days after the preview for developers. iOS 10 public beta 2, the relevant iOS 10 beta 3, will be available to all during this week.
If you want to have permanent access to pre-release versions of iOS, you can always buy developer account and pay an annual fee.
Thirdly, there is a not quite legal way. Developer account you can buy, borrow or “steal”. All you need to do is find the profile on the Network and install it on your iPhone or iPad.
After the developer profile or the profile to install the public beta will be installed on the device, go to Settings -> General -> software Update. iOS 10 beta can be downloaded as a normal update.
If you have already installed iOS 10 beta 2, the same go to Settings -> General -> software Update and download the current version.