How to update and install Android 2.2 ( Froyo ) on Nexus One


26.05.2010

How to update and install Android 2.2 ( Froyo ) on Nexus One

Anticipating the latest Android 2.1 issues, Google has rushed to release the Android 2.2 update, also known as Froyo. This one is currently available only for the Nexus One and you can get it by luck, if you receive the OTA version on your smartphone ( an process totally random ) of, if you choose to complete the steps bellow and manually update the Google Nexus One to Android 2.2 .

An important thing to know is that this procedure updates your N1 to the official Android 2.2 only if you have a stock model. The firmware is posted on official Google servers. Also, this will not work if you have a leaked update installed or if your phone is rooted. A guide for the rooted N1 will be available later this day.

If you are looking for a guide to upgrade an rooted Nexus One to Android 2.2, you will find it here.

Froyo in Nexus One

How to manually update the Nexus One to Android 2.2 ( Froyo )
  1. Download the Froyo update.

  2. Rename the file above into “update.zip” and copy it into the root folder of your microSD card. Turn off the phone.

  3. Boot the N1 into the recovery mode by holding the trackball and pressing once on the power button.

  4. Select the “Bootloader” and then the “Recovery” option.

  5. Wait until the phone restarts ( you should see a big exclamation point ) and then press the “Volume up” and the “Power ” button at the same time.

  6. Select “Apply sdcard:update.zip” using the trackball.

  7. Success. You have managed to update the Nexus One to Android 2.2

Troubleshooting :

If you get the “failed to open /sdcard/update.zip (No such file or directory)” error, make sure that the update file is named correctly.  This may happen if you have an Windows option activated which hides files extensions.

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