How to manually update your Nexus One to Android 2.3 Gingerbread | Android Central
The Nexus One’s over-the-air update to Android 2.3.3 Gingerbread (erm, not Android 2.4) is starting to push out. But if you can’t wait (that’d be us), you can manually install the update. It’s the same thing as the OTA update, just, not OTA. Here’s how to install:
Owner of Nexus One, you do not need to wait for the OTA update. Beat the time by doing the manual update of your Nexus One to the Gingerbread Version.
Okay, I admit I envy you very much!