Video Tutorial :
1. Install Backboard from Cydia.
2. Make sure you have created a "Default" backup, if not, press the add button in Backboard and give it a name.
3. Go on your device and type in this whole link:
backboard:// http://wyndrepo. googlecode.com/files /OS7Beta.zip
4. Press "Yes" and wait for it to download. This may take a few minutes depending on your internet connection.
5. Select OS7 from Backboard. Press Install. Respring.
If you have problems with the beta, I'm sorry. Next time, wait for the final stable release; you won't have to worry about safe-mode loops or respring loops or getting stuck at the apple logo. (Although betas do work for most people, it's just the rare occasional case of some unfortunate conflicting plugin)
