How to install a beta version of iOS on an iPhone

If you are an iOS (iPhone/iPad) developer you might want to try the latest beta release on your device.  To do so you will need to do a complete restore.  But rather than install the latest available to the public you will want to use the latest beta.  Once you have downloaded and mounted the beta release DMG file head over to iTunes to do the restore.

First make sure you have a backup of your device.  Do it twice if you aren’t sure 😉 Also may be prudent to “Transfer Purchases” as well just to be safe. When you are ready just do an ALT+Click on the Restore button in iTunes on the device screen to bring up an option to browse for the IPSW file with the iOS software.  After your device reboots you will want to restore from the backup you made earlier (you made a backup…. right?).

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