Official Windows Phone Mango update leaks out7
So, if you just can't wait, the official Mango RTM build 7720 has leaked out and is ready for unauthorized updating. Now, we aren't advocating the unauthorized update, and anything you do to your device is your responsibility, but we know that there will be those of you out there who have been waiting for this. The instructions seem a bit involved, so don't expect an easy flash experience. The early reports are showing success in updates on all devices and networks, so if you want to give it a shot, the files and instruction links are below.