if you're a developer looking to take a peek at ios 10.3, here's how to install the developer beta.update march 16, 2017: apple has just released ios 10.3 beta 7 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 7 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 make an archived backup of your iphone or ipadbefore you begin, make sure you back up your iphone or ipad. while the beta process is fairly straight forward, any time you make any significant change to your device you risk problems. and with your personal data, it's always — always! — better to be safe than sorry. even if you back up every night, you'll want to make sure it's absolutely up-to-date.plug iphone or ipad into your mac or windows pc.launch itunes.click on the iphone or ipad icon in the menu bar when it appears.make sure backup is set to this computer. (and enable encrypted backup — it's worth i...