How to Upgrade iOS 10.3 beta 4 to your iPhone or iPad

How to Upgrade iOS 10.3 beta 4 to your iPhone or iPad -  If you're a developer looking to take a peek at iOS 10.3 beta 4, here's how to install the developer beta.
  • Update February 27, 2017: Apple has just released iOS 10.3 beta 4 for developers. If you have a previous iOS 10 beta installed, you can head to Settings > General > Software Updates and get started downloading. Note that this update moves your device's file system over to the Apple File System, making downgrading difficult. If you were waiting for beta 4 to get started with iOS 10.3 testing, keep reading and we'll help you get set up.
iOS 10.2 is on its way with new features, several that require lots of third-party developer input. As such, the company is releasing developer betas so that software engineers can get a head start on making great software for you. 

How to install the iOS 10.3 beta

To install the iOS 10.3 beta, you'll need to visit Software Update on your iPhone or iPad.
  1. Launch Settings from your Home screen, tap on General, then tap on Software Update. 
  2. Once the update appears, tap on Download and Install. 
  3. Enter your Passcode. 
  4. Tap Agree to the Terms and Conditions. 
  5. Tap Agree again to confirm.
Your iPhone or iPad will reboot to install iOS 10.3. There will be a couple progress bars going across the screen. Sit tight, and let everything finish.