How-to: Run iOS 7 beta on iPhone 4s/5 without a UDID dev account

Here's how to install iOS 7 without a UDID developer account:

WARNING: Once you update to iOS 7 you cannot restore to previous versions if you do not have a backup through iCloud first! Run iCloud backup to perform a backup BEFORE doing the below.

1. get the .ipsw file for your iPhone here
2. connect your device to your computer and make sure iTunes opens
3. Alt/Option for mac, Shift for Win, while clicking on the "Check for updates" button (NOT restore)
4. iTunes should find iOS 7 and load it on to your iOS device

More info about iOS 7: http://www.apple.com/ios/ios7/

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