Updating your device ios 5
To install the i OS 10.3 beta, you'll need to visit Software Update on your i Phone or i Pad.Your i Phone or i Pad will reboot to install i OS 10.3.As such, Apple is letting interested users check out i OS 10.3 and provide feedback before it goes into wide release.If you're one of those interested users, however, you will have to go through the public beta download and install process. So, we're going to walk you through it and give you a place to ask questions if you need extra help.
While the beta process is fairly straight forward, any time you make any significant change to your device you risk problems. Archiving will prevent your current backup from being overwritten by an i OS 10 backup in the future, should you want to revert for any reason.
Up until this point, the idea is that no changes to your system have been made that are “unsafe”: at any point, if Impactor fails/crashes or your device reboots, you can just run it again later.
Finally, all of the staged changes to the filesystem are “committed”, all user data is deleted, and i OS is told to run its “reset all content and settings”.
These files are ~2GB large, so Impactor goes to extreme lengths to minimize the amount of data it needs to download: most recoveries will require less than 10MB of transfer.
First, the update’s “bill of materials” is compared against the files on your device, generating a list of changes.