Google started to roll out Android 2.3.3 (Gingerbread) OTA update to Nexus One and Nexus S users on February 23rd, 2011. If you haven't received Android 2.3.3 OTA update on your Nexus One yet, you can use step-by-step guide below to install Android 2.3.3 Gingerbread on your Nexus One manually.
If you have rooted your Nexus One on Android 2.2.1, do not wait for OTA update as Google do not send OTA update to those who have got rooted phones. Just follow the manual guide below to updated your Nexus One to Android 2.3.3 Gingerbread within 5 minutes.
Steps to Manually Install Android 2.3.3 Gingerbread on Nexus One:
- Download official Android 2.3.3 update for Nexus One from here | Mirror
- Connect your Nexus One with your computer via USB cable.
- Rename the downloaded file to update.zip and move it to the root directory of the microSD card.
- Turn OFF your Nexus One completely.
- Press the Power button and hold the Trackball at the same time to put your Nexus One in FASTBOOT mode.
- Once you are in FASTBOOT mode as shown in the above screenshot, select the BOOTLOADER by pressing the Power button.
- Once you are in HBOOT menu, choose Recovery by pressing the Volume Down key and then select it by pressing the Power button.
- When you will press the Power button, you phone will restart and you will see the triangle with exclamation mark in it. Press the Volume Up and Power key to boot into Android system recovery.
- Once you are in Android system recovery menu, scroll down using Trackball to select apply sdcard:update.zip and press the Trackball once to begin installation.
- Once installation has been done, choose reboot system now from the recovery menu to reboot your phone.
Thats it! Now your Nexus One should be running Android 2.3.3 Gingerbread. To verify, navigate to Settings and then choose About phone. [via XDA-Developers]Contact Us for News Tips, Corrections and Feedback