Google has officially started rolling out Android 2.3.3 Gingerbread update GRI40 for Nexus One via OTA update. If you have not yet received the update and willing to update it, then you can download and install Android 2.3.3 Gingerbread manually on your Nexus One. Follow the guide on how to download and install Android 2.3.3 Gingerbread on Google Nexus One.

Requirements: 1) Android 2.3.3 Gingerbread GRI40-from-FRG83G.81304b2d (Click here to download) 2) Nexus One running Android 2.2.2 Froyo (FRG83G)

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Tired of waiting the OTA for Nexus One, you can visit the web page and DIY. Turn your Nexus one to Android 2.3.3 Firmware.