If you’re an HTC EVO 3D user, and you don’t want to wait for the official Ice Cream Sandwich Update, and you’re feeling more than a little adventurous, a new RUU files has leaked for your precious phone. No one knows if it’s the final update, or some test update, but people have been saying it could very well be the final update. There are of course risks associated with flashing these files, but you should never flash if you don’t know what you’re doing. If you know how it works, and accept the risks, you can download the file here. It’s a .exe so it’s PC only, but it’s automated and should be easy. Good luck.
It didn't work for me either.
I don't know what's more frustrating; The wait for the official upgrade, that these leaks can't be verified until people like us try them or the thought that Sprint is probably sitting on a finished version of the official update.
I love Android, but I'm really growing tired of this whole cycle.