May 23
First check the build number (Settings \ About Phone) and check the build number out which needs to be ETE27.
- Download the 44.4mb update file from Google
(filename: signed-passion-FRF50-from-ERE27.1e519a24.zip) - Rename the file to update.zip
- Copy to the root of the SD card as shown

- Turn the Nexus One off

- Hold down the trackball button and turn on the Nexus One

- Scroll down using the “volume down” button to the recovery option and press the “power” button to select.

- The phone will reboot and allow you to select the firmware to upgrade.

- Scroll down using the trackball and press it to select.



- The firmware upgrade will begin immediately, allow 5 minutes for the flashing stage.


- After the firmware is flashed the Nexus One will reboot.



- Startup shows the upgrade was successful.


Automatic Updating of Applications

New Car Screens

New Car Screens

Tethering and Portable Hotspot
Did you lose any applications in upgrading? Is there any other dataloss that you noticed?
but does it run the same with rooting
I have build EPF30.
Will it work?
Thanks
[...] Upgrading the Google Nexus One Eclair 2.1 to Froyo 2.2 – unrooted stock Jun 21 [...]
[...] the instructions here – Upgrading the Google Nexus One Eclair 2.1 to Froyo 2.2 – unrooted stock (note that step 9 may require you to press reboot [...]
[...] the instructions here – Upgrading the Google Nexus One Eclair 2.1 to Froyo 2.2 – unrooted stock (note that step 9 may require you to press reboot [...]