The Google Nexus One was launched back in January 2010 by Google with Android 2.1 Éclair  OS pre-installed but it was upgradable to 2.3.4.  But now we came to know that it has received Android 2.3.6 Build GRK9F update and as said by Google this update fixes important bugs and security patches. Here, we are going to tell you how to update Nexus One to 2.3.6 manually and by using the official update file.

Update Nexus One to Android 2.3.6 Build GRK9F

Getting Started with Update Process:

  • First you need to download the official update file (Link provided below).
  • Now after downloading the update file, rename the file to “” without quotes and if you are using a Windows PC to perform the update then simply rename the file as “Update”
    (of course without quotes).
  • In the third step, copy the file to Nexus One MicroSD card.
  • Now switch off your phone, hold down the trackball and press the power button.
  • In the fifth step, the device will boot into a white screen with three Android robots on skateboards. Select the “Bootloader”.
  • In the next step, select “Recovery”.
  • Now, the device will reboot with a picture of Android robot and an exclamation mark inside a triangle.
  • Now, press the power and volume up button at the same time and select “Apply sdcard:” using device trackball and relax.
  • Let the update file to run and update the device and after sometime reboot Nexus One.
  • Enjoy running Android 2.3.6 Build GRK9F.
Download Update file from here
Via AndroidCentral