Email :

1. Enter your email address. Make sure your Vita can receive emails to that location
2. Press the submit button
3. Make sure you close the PSM Dev Assistant before running the email app on your Vita
4. Check your emails from the "Email" application in your PSVita
5. Touch one of the attachment icons
6. An error will show up, don't press OK, close the email app and start it again. Go to step 5 for each file
7. Enjoy Rejuvenate for Unity!